diff options
Diffstat (limited to 'CryptoPkg/Include')
| -rw-r--r-- | CryptoPkg/Include/Library/BaseCryptLib.h | 1268 |
1 files changed, 1184 insertions, 84 deletions
diff --git a/CryptoPkg/Include/Library/BaseCryptLib.h b/CryptoPkg/Include/Library/BaseCryptLib.h index 556026e1be..ee8c44d367 100644 --- a/CryptoPkg/Include/Library/BaseCryptLib.h +++ b/CryptoPkg/Include/Library/BaseCryptLib.h @@ -1,7 +1,8 @@ /** @file
Defines base cryptographic library APIs.
The Base Cryptographic Library provides implementations of basic cryptography
- primitives (MD5, SHA-1, SHA-256, RSA, etc) for UEFI security functionality enabling.
+ primitives (Hash Serials, HMAC, RSA, Diffie-Hellman, etc) for UEFI security
+ functionality enabling.
Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
@@ -33,6 +34,16 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. #define SHA256_DIGEST_SIZE 32
///
+/// TDES block size in bytes
+///
+#define TDES_BLOCK_SIZE 8
+
+///
+/// AES block size in bytes
+///
+#define AES_BLOCK_SIZE 16
+
+///
/// RSA Key Tags Definition used in RsaSetKey() function for key component identification.
///
typedef enum {
@@ -62,14 +73,13 @@ Md5GetContextSize ( VOID
);
-
/**
Initializes user-supplied memory pointed by Md5Context as MD5 hash context for
subsequent use.
If Md5Context is NULL, then ASSERT().
- @param[in, out] Md5Context Pointer to MD5 Context being initialized.
+ @param[out] Md5Context Pointer to MD5 context being initialized.
@retval TRUE MD5 context initialization succeeded.
@retval FALSE MD5 context initialization failed.
@@ -78,23 +88,45 @@ Md5GetContextSize ( BOOLEAN
EFIAPI
Md5Init (
- IN OUT VOID *Md5Context
+ OUT VOID *Md5Context
);
+/**
+ Makes a copy of an existing MD5 context.
+
+ If Md5Context is NULL, then ASSERT().
+ If NewMd5Context is NULL, then ASSERT().
+
+ @param[in] Md5Context Pointer to MD5 context being copied.
+ @param[out] NewMd5Context Pointer to new MD5 context.
+
+ @retval TRUE MD5 context copy succeeded.
+ @retval FALSE MD5 context copy failed.
+
+**/
+BOOLEAN
+EFIAPI
+Md5Duplicate (
+ IN CONST VOID *Md5Context,
+ OUT VOID *NewMd5Context
+ );
/**
- Performs MD5 digest on a data buffer of the specified length. This function can
- be called multiple times to compute the digest of long or discontinuous data streams.
+ Digests the input data and updates MD5 context.
+
+ This function performs MD5 digest on a data buffer of the specified size.
+ It can be called multiple times to compute the digest of long or discontinuous data streams.
+ MD5 context should be already correctly intialized by Md5Init(), and should not be finalized
+ by Md5Final(). Behavior with invalid context is undefined.
If Md5Context is NULL, then ASSERT().
@param[in, out] Md5Context Pointer to the MD5 context.
@param[in] Data Pointer to the buffer containing the data to be hashed.
- @param[in] DataLength Length of Data buffer in bytes.
+ @param[in] DataSize Size of Data buffer in bytes.
@retval TRUE MD5 data digest succeeded.
- @retval FALSE Invalid MD5 context. After Md5Final function has been called, the
- MD5 context cannot be reused.
+ @retval FALSE MD5 data digest failed.
**/
BOOLEAN
@@ -102,18 +134,22 @@ EFIAPI Md5Update (
IN OUT VOID *Md5Context,
IN CONST VOID *Data,
- IN UINTN DataLength
+ IN UINTN DataSize
);
-
/**
- Completes MD5 hash computation and retrieves the digest value into the specified
- memory. After this function has been called, the MD5 context cannot be used again.
+ Completes computation of the MD5 digest value.
+
+ This function completes MD5 hash computation and retrieves the digest value into
+ the specified memory. After this function has been called, the MD5 context cannot
+ be used again.
+ MD5 context should be already correctly intialized by Md5Init(), and should not be
+ finalized by Md5Final(). Behavior with invalid MD5 context is undefined.
If Md5Context is NULL, then ASSERT().
If HashValue is NULL, then ASSERT().
- @param[in, out] Md5Context Pointer to the MD5 context
+ @param[in, out] Md5Context Pointer to the MD5 context.
@param[out] HashValue Pointer to a buffer that receives the MD5 digest
value (16 bytes).
@@ -128,7 +164,6 @@ Md5Final ( OUT UINT8 *HashValue
);
-
/**
Retrieves the size, in bytes, of the context buffer required for SHA-1 hash operations.
@@ -141,39 +176,60 @@ Sha1GetContextSize ( VOID
);
-
/**
- Initializes user-supplied memory pointed by Sha1Context as the SHA-1 hash context for
+ Initializes user-supplied memory pointed by Sha1Context as SHA-1 hash context for
subsequent use.
If Sha1Context is NULL, then ASSERT().
- @param[in, out] Sha1Context Pointer to the SHA-1 Context being initialized.
+ @param[out] Sha1Context Pointer to SHA-1 context being initialized.
- @retval TRUE SHA-1 initialization succeeded.
- @retval FALSE SHA-1 initialization failed.
+ @retval TRUE SHA-1 context initialization succeeded.
+ @retval FALSE SHA-1 context initialization failed.
**/
BOOLEAN
EFIAPI
Sha1Init (
- IN OUT VOID *Sha1Context
+ OUT VOID *Sha1Context
);
+/**
+ Makes a copy of an existing SHA-1 context.
+
+ If Sha1Context is NULL, then ASSERT().
+ If NewSha1Context is NULL, then ASSERT().
+
+ @param[in] Sha1Context Pointer to SHA-1 context being copied.
+ @param[out] NewSha1Context Pointer to new SHA-1 context.
+
+ @retval TRUE SHA-1 context copy succeeded.
+ @retval FALSE SHA-1 context copy failed.
+
+**/
+BOOLEAN
+EFIAPI
+Sha1Duplicate (
+ IN CONST VOID *Sha1Context,
+ OUT VOID *NewSha1Context
+ );
/**
- Performs SHA-1 digest on a data buffer of the specified length. This function can
- be called multiple times to compute the digest of long or discontinuous data streams.
+ Digests the input data and updates SHA-1 context.
+
+ This function performs SHA-1 digest on a data buffer of the specified size.
+ It can be called multiple times to compute the digest of long or discontinuous data streams.
+ SHA-1 context should be already correctly intialized by Sha1Init(), and should not be finalized
+ by Sha1Final(). Behavior with invalid context is undefined.
If Sha1Context is NULL, then ASSERT().
@param[in, out] Sha1Context Pointer to the SHA-1 context.
@param[in] Data Pointer to the buffer containing the data to be hashed.
- @param[in] DataLength Length of Data buffer in bytes.
+ @param[in] DataSize Size of Data buffer in bytes.
@retval TRUE SHA-1 data digest succeeded.
- @retval FALSE Invalid SHA-1 context. After Sha1Final function has been called, the
- SHA-1 context cannot be reused.
+ @retval FALSE SHA-1 data digest failed.
**/
BOOLEAN
@@ -181,18 +237,22 @@ EFIAPI Sha1Update (
IN OUT VOID *Sha1Context,
IN CONST VOID *Data,
- IN UINTN DataLength
+ IN UINTN DataSize
);
-
/**
- Completes SHA-1 hash computation and retrieves the digest value into the specified
- memory. After this function has been called, the SHA-1 context cannot be used again.
+ Completes computation of the SHA-1 digest value.
+
+ This function completes SHA-1 hash computation and retrieves the digest value into
+ the specified memory. After this function has been called, the SHA-1 context cannot
+ be used again.
+ SHA-1 context should be already correctly intialized by Sha1Init(), and should not be
+ finalized by Sha1Final(). Behavior with invalid SHA-1 context is undefined.
If Sha1Context is NULL, then ASSERT().
If HashValue is NULL, then ASSERT().
- @param[in, out] Sha1Context Pointer to the SHA-1 context
+ @param[in, out] Sha1Context Pointer to the SHA-1 context.
@param[out] HashValue Pointer to a buffer that receives the SHA-1 digest
value (20 bytes).
@@ -207,11 +267,10 @@ Sha1Final ( OUT UINT8 *HashValue
);
-
/**
- Retrieves the size, in bytes, of the context buffer required for SHA-256 operations.
+ Retrieves the size, in bytes, of the context buffer required for SHA-256 hash operations.
- @return The size, in bytes, of the context buffer required for SHA-256 operations.
+ @return The size, in bytes, of the context buffer required for SHA-256 hash operations.
**/
UINTN
@@ -220,14 +279,13 @@ Sha256GetContextSize ( VOID
);
-
/**
Initializes user-supplied memory pointed by Sha256Context as SHA-256 hash context for
subsequent use.
If Sha256Context is NULL, then ASSERT().
- @param[in, out] Sha256Context Pointer to SHA-256 Context being initialized.
+ @param[out] Sha256Context Pointer to SHA-256 context being initialized.
@retval TRUE SHA-256 context initialization succeeded.
@retval FALSE SHA-256 context initialization failed.
@@ -236,23 +294,45 @@ Sha256GetContextSize ( BOOLEAN
EFIAPI
Sha256Init (
- IN OUT VOID *Sha256Context
+ OUT VOID *Sha256Context
);
+/**
+ Makes a copy of an existing SHA-256 context.
+
+ If Sha256Context is NULL, then ASSERT().
+ If NewSha256Context is NULL, then ASSERT().
+
+ @param[in] Sha256Context Pointer to SHA-256 context being copied.
+ @param[out] NewSha256Context Pointer to new SHA-256 context.
+
+ @retval TRUE SHA-256 context copy succeeded.
+ @retval FALSE SHA-256 context copy failed.
+
+**/
+BOOLEAN
+EFIAPI
+Sha256Duplicate (
+ IN CONST VOID *Sha256Context,
+ OUT VOID *NewSha256Context
+ );
/**
- Performs SHA-256 digest on a data buffer of the specified length. This function can
- be called multiple times to compute the digest of long or discontinuous data streams.
+ Digests the input data and updates SHA-256 context.
+
+ This function performs SHA-256 digest on a data buffer of the specified size.
+ It can be called multiple times to compute the digest of long or discontinuous data streams.
+ SHA-256 context should be already correctly intialized by Sha256Init(), and should not be finalized
+ by Sha256Final(). Behavior with invalid context is undefined.
If Sha256Context is NULL, then ASSERT().
@param[in, out] Sha256Context Pointer to the SHA-256 context.
@param[in] Data Pointer to the buffer containing the data to be hashed.
- @param[in] DataLength Length of Data buffer in bytes.
+ @param[in] DataSize Size of Data buffer in bytes.
@retval TRUE SHA-256 data digest succeeded.
- @retval FALSE Invalid SHA-256 context. After Sha256Final function has been called, the
- SHA-256 context cannot be reused.
+ @retval FALSE SHA-256 data digest failed.
**/
BOOLEAN
@@ -260,18 +340,22 @@ EFIAPI Sha256Update (
IN OUT VOID *Sha256Context,
IN CONST VOID *Data,
- IN UINTN DataLength
+ IN UINTN DataSize
);
-
/**
- Completes SHA-256 hash computation and retrieves the digest value into the specified
- memory. After this function has been called, the SHA-256 context cannot be used again.
+ Completes computation of the SHA-256 digest value.
+
+ This function completes SHA-256 hash computation and retrieves the digest value into
+ the specified memory. After this function has been called, the SHA-256 context cannot
+ be used again.
+ SHA-256 context should be already correctly intialized by Sha256Init(), and should not be
+ finalized by Sha256Final(). Behavior with invalid SHA-256 context is undefined.
If Sha256Context is NULL, then ASSERT().
If HashValue is NULL, then ASSERT().
- @param[in, out] Sha256Context Pointer to SHA-256 context
+ @param[in, out] Sha256Context Pointer to the SHA-256 context.
@param[out] HashValue Pointer to a buffer that receives the SHA-256 digest
value (32 bytes).
@@ -291,28 +375,717 @@ Sha256Final ( // MAC (Message Authentication Code) Primitive
//=====================================================================================
-///
-/// No MAC supports for minimum scope required by UEFI
-///
+/**
+ Retrieves the size, in bytes, of the context buffer required for HMAC-MD5 operations.
+
+ @return The size, in bytes, of the context buffer required for HMAC-MD5 operations.
+
+**/
+UINTN
+EFIAPI
+HmacMd5GetContextSize (
+ VOID
+ );
+
+/**
+ Initializes user-supplied memory pointed by HmacMd5Context as HMAC-MD5 context for
+ subsequent use.
+
+ If HmacMd5Context is NULL, then ASSERT().
+
+ @param[out] HmacMd5Context Pointer to HMAC-MD5 context being initialized.
+ @param[in] Key Pointer to the user-supplied key.
+ @param[in] KeySize Key size in bytes.
+
+ @retval TRUE HMAC-MD5 context initialization succeeded.
+ @retval FALSE HMAC-MD5 context initialization failed.
+
+**/
+BOOLEAN
+EFIAPI
+HmacMd5Init (
+ OUT VOID *HmacMd5Context,
+ IN CONST UINT8 *Key,
+ IN UINTN KeySize
+ );
+
+/**
+ Makes a copy of an existing HMAC-MD5 context.
+
+ If HmacMd5Context is NULL, then ASSERT().
+ If NewHmacMd5Context is NULL, then ASSERT().
+
+ @param[in] HmacMd5Context Pointer to HMAC-MD5 context being copied.
+ @param[out] NewHmacMd5Context Pointer to new HMAC-MD5 context.
+
+ @retval TRUE HMAC-MD5 context copy succeeded.
+ @retval FALSE HMAC-MD5 context copy failed.
+
+**/
+BOOLEAN
+EFIAPI
+HmacMd5Duplicate (
+ IN CONST VOID *HmacMd5Context,
+ OUT VOID *NewHmacMd5Context
+ );
+
+/**
+ Digests the input data and updates HMAC-MD5 context.
+
+ This function performs HMAC-MD5 digest on a data buffer of the specified size.
+ It can be called multiple times to compute the digest of long or discontinuous data streams.
+ HMAC-MD5 context should be already correctly intialized by HmacMd5Init(), and should not be
+ finalized by HmacMd5Final(). Behavior with invalid context is undefined.
+
+ If HmacMd5Context is NULL, then ASSERT().
+
+ @param[in, out] HmacMd5Context Pointer to the HMAC-MD5 context.
+ @param[in] Data Pointer to the buffer containing the data to be digested.
+ @param[in] DataSize Size of Data buffer in bytes.
+
+ @retval TRUE HMAC-MD5 data digest succeeded.
+ @retval FALSE HMAC-MD5 data digest failed.
+
+**/
+BOOLEAN
+EFIAPI
+HmacMd5Update (
+ IN OUT VOID *HmacMd5Context,
+ IN CONST VOID *Data,
+ IN UINTN DataSize
+ );
+
+/**
+ Completes computation of the HMAC-MD5 digest value.
+
+ This function completes HMAC-MD5 hash computation and retrieves the digest value into
+ the specified memory. After this function has been called, the HMAC-MD5 context cannot
+ be used again.
+ HMAC-MD5 context should be already correctly intialized by HmacMd5Init(), and should not be
+ finalized by HmacMd5Final(). Behavior with invalid HMAC-MD5 context is undefined.
+
+ If HmacMd5Context is NULL, then ASSERT().
+ If HashValue is NULL, then ASSERT().
+
+ @param[in, out] HmacMd5Context Pointer to the HMAC-MD5 context.
+ @param[out] HashValue Pointer to a buffer that receives the HMAC-MD5 digest
+ value (16 bytes).
+
+ @retval TRUE HMAC-MD5 digest computation succeeded.
+ @retval FALSE HMAC-MD5 digest computation failed.
+
+**/
+BOOLEAN
+EFIAPI
+HmacMd5Final (
+ IN OUT VOID *HmacMd5Context,
+ OUT UINT8 *HmacValue
+ );
+
+/**
+ Retrieves the size, in bytes, of the context buffer required for HMAC-SHA1 operations.
+
+ @return The size, in bytes, of the context buffer required for HMAC-SHA1 operations.
+
+**/
+UINTN
+EFIAPI
+HmacSha1GetContextSize (
+ VOID
+ );
+
+/**
+ Initializes user-supplied memory pointed by HmacSha1Context as HMAC-SHA1 context for
+ subsequent use.
+
+ If HmacSha1Context is NULL, then ASSERT().
+
+ @param[out] HmacSha1Context Pointer to HMAC-SHA1 context being initialized.
+ @param[in] Key Pointer to the user-supplied key.
+ @param[in] KeySize Key size in bytes.
+
+ @retval TRUE HMAC-SHA1 context initialization succeeded.
+ @retval FALSE HMAC-SHA1 context initialization failed.
+
+**/
+BOOLEAN
+EFIAPI
+HmacSha1Init (
+ OUT VOID *HmacSha1Context,
+ IN CONST UINT8 *Key,
+ IN UINTN KeySize
+ );
+
+/**
+ Makes a copy of an existing HMAC-SHA1 context.
+
+ If HmacSha1Context is NULL, then ASSERT().
+ If NewHmacSha1Context is NULL, then ASSERT().
+
+ @param[in] HmacSha1Context Pointer to HMAC-SHA1 context being copied.
+ @param[out] NewHmacSha1Context Pointer to new HMAC-SHA1 context.
+
+ @retval TRUE HMAC-SHA1 context copy succeeded.
+ @retval FALSE HMAC-SHA1 context copy failed.
+
+**/
+BOOLEAN
+EFIAPI
+HmacSha1Duplicate (
+ IN CONST VOID *HmacSha1Context,
+ OUT VOID *NewHmacSha1Context
+ );
+
+/**
+ Digests the input data and updates HMAC-SHA1 context.
+
+ This function performs HMAC-SHA1 digest on a data buffer of the specified size.
+ It can be called multiple times to compute the digest of long or discontinuous data streams.
+ HMAC-SHA1 context should be already correctly intialized by HmacSha1Init(), and should not
+ be finalized by HmacSha1Final(). Behavior with invalid context is undefined.
+
+ If HmacSha1Context is NULL, then ASSERT().
+
+ @param[in, out] HmacSha1Context Pointer to the HMAC-SHA1 context.
+ @param[in] Data Pointer to the buffer containing the data to be digested.
+ @param[in] DataSize Size of Data buffer in bytes.
+
+ @retval TRUE HMAC-SHA1 data digest succeeded.
+ @retval FALSE HMAC-SHA1 data digest failed.
+
+**/
+BOOLEAN
+EFIAPI
+HmacSha1Update (
+ IN OUT VOID *HmacSha1Context,
+ IN CONST VOID *Data,
+ IN UINTN DataSize
+ );
+
+/**
+ Completes computation of the HMAC-SHA1 digest value.
+
+ This function completes HMAC-SHA1 hash computation and retrieves the digest value into
+ the specified memory. After this function has been called, the HMAC-SHA1 context cannot
+ be used again.
+ HMAC-SHA1 context should be already correctly intialized by HmacSha1Init(), and should
+ not be finalized by HmacSha1Final(). Behavior with invalid HMAC-SHA1 context is undefined.
+
+ If HmacSha1Context is NULL, then ASSERT().
+ If HashValue is NULL, then ASSERT().
+
+ @param[in, out] HmacSha1Context Pointer to the HMAC-SHA1 context.
+ @param[out] HashValue Pointer to a buffer that receives the HMAC-SHA1 digest
+ value (20 bytes).
+
+ @retval TRUE HMAC-SHA1 digest computation succeeded.
+ @retval FALSE HMAC-SHA1 digest computation failed.
+
+**/
+BOOLEAN
+EFIAPI
+HmacSha1Final (
+ IN OUT VOID *HmacSha1Context,
+ OUT UINT8 *HmacValue
+ );
//=====================================================================================
// Symmetric Cryptography Primitive
//=====================================================================================
-///
-/// No symmetric cryptographic supports for minimum scope required by UEFI
-///
+/**
+ Retrieves the size, in bytes, of the context buffer required for TDES operations.
+
+ @return The size, in bytes, of the context buffer required for TDES operations.
+
+**/
+UINTN
+EFIAPI
+TdesGetContextSize (
+ VOID
+ );
+
+/**
+ Initializes user-supplied memory as TDES context for subsequent use.
+
+ This function initializes user-supplied memory pointed by TdesContext as TDES context.
+ In addtion, it sets up all TDES key materials for subsequent encryption and decryption
+ operations.
+ There are 3 key options as follows:
+ KeyLength = 64, Keying option 1: K1 == K2 == K3 (Backward compatibility with DES)
+ KeyLength = 128, Keying option 2: K1 != K2 and K3 = K1 (Less Security)
+ KeyLength = 192 Keying option 3: K1 != K2 != K3 (Strongest)
+
+ If TdesContext is NULL, then ASSERT().
+ If Key is NULL, then ASSERT().
+ If KeyLength is not valid, then ASSERT().
+
+ @param[out] TdesContext Pointer to TDES context being initialized.
+ @param[in] Key Pointer to the user-supplied TDES key.
+ @param[in] KeyLength Length of TDES key in bits.
+
+ @retval TRUE TDES context initialization succeeded.
+ @retval FALSE TDES context initialization failed.
+**/
+BOOLEAN
+EFIAPI
+TdesInit (
+ OUT VOID *TdesContext,
+ IN CONST UINT8 *Key,
+ IN UINTN KeyLength
+ );
+
+/**
+ Performs TDES encryption on a data buffer of the specified size in ECB mode.
+
+ This function performs TDES encryption on data buffer pointed by Input, of specified
+ size of InputSize, in ECB mode.
+ InputSize must be multiple of block size (8 bytes). This function does not perform
+ padding. Caller must perform padding, if necessary, to ensure valid input data size.
+ TdesContext should be already correctly initialized by TdesInit(). Behavior with
+ invalid TDES context is undefined.
+
+ If TdesContext is NULL, then ASSERT().
+ If Input is NULL, then ASSERT().
+ If InputSize is not multiple of block size (8 bytes), then ASSERT().
+ If Output is NULL, then ASSERT().
+
+ @param[in] TdesContext Pointer to the TDES context.
+ @param[in] Input Pointer to the buffer containing the data to be encrypted.
+ @param[in] InputSize Size of the Input buffer in bytes.
+ @param[out] Output Pointer to a buffer that receives the TDES encryption output.
+
+ @retval TRUE TDES encryption succeeded.
+ @retval FALSE TDES encryption failed.
+
+**/
+BOOLEAN
+EFIAPI
+TdesEcbEncrypt (
+ IN VOID *TdesContext,
+ IN CONST UINT8 *Input,
+ IN UINTN InputSize,
+ OUT UINT8 *Output
+ );
+
+/**
+ Performs TDES decryption on a data buffer of the specified size in ECB mode.
+
+ This function performs TDES decryption on data buffer pointed by Input, of specified
+ size of InputSize, in ECB mode.
+ InputSize must be multiple of block size (8 bytes). This function does not perform
+ padding. Caller must perform padding, if necessary, to ensure valid input data size.
+ TdesContext should be already correctly initialized by TdesInit(). Behavior with
+ invalid TDES context is undefined.
+
+ If TdesContext is NULL, then ASSERT().
+ If Input is NULL, then ASSERT().
+ If InputSize is not multiple of block size (8 bytes), then ASSERT().
+ If Output is NULL, then ASSERT().
+
+ @param[in] TdesContext Pointer to the TDES context.
+ @param[in] Input Pointer to the buffer containing the data to be decrypted.
+ @param[in] InputSize Size of the Input buffer in bytes.
+ @param[out] Output Pointer to a buffer that receives the TDES decryption output.
+
+ @retval TRUE TDES decryption succeeded.
+ @retval FALSE TDES decryption failed.
+
+**/
+BOOLEAN
+EFIAPI
+TdesEcbDecrypt (
+ IN VOID *TdesContext,
+ IN CONST UINT8 *Input,
+ IN UINTN InputSize,
+ OUT UINT8 *Output
+ );
+
+/**
+ Performs TDES encryption on a data buffer of the specified size in CBC mode.
+
+ This function performs TDES encryption on data buffer pointed by Input, of specified
+ size of InputSize, in CBC mode.
+ InputSize must be multiple of block size (8 bytes). This function does not perform
+ padding. Caller must perform padding, if necessary, to ensure valid input data size.
+ Initialization vector should be one block size (8 bytes).
+ TdesContext should be already correctly initialized by TdesInit(). Behavior with
+ invalid TDES context is undefined.
+
+ If TdesContext is NULL, then ASSERT().
+ If Input is NULL, then ASSERT().
+ If InputSize is not multiple of block size (8 bytes), then ASSERT().
+ If Ivec is NULL, then ASSERT().
+ If Output is NULL, then ASSERT().
+
+ @param[in] TdesContext Pointer to the TDES context.
+ @param[in] Input Pointer to the buffer containing the data to be encrypted.
+ @param[in] InputSize Size of the Input buffer in bytes.
+ @param[in] Ivec Pointer to initialization vector.
+ @param[out] Output Pointer to a buffer that receives the TDES encryption output.
+
+ @retval TRUE TDES encryption succeeded.
+ @retval FALSE TDES encryption failed.
+
+**/
+BOOLEAN
+EFIAPI
+TdesCbcEncrypt (
+ IN VOID *TdesContext,
+ IN CONST UINT8 *Input,
+ IN UINTN InputSize,
+ IN CONST UINT8 *Ivec,
+ OUT UINT8 *Output
+ );
+
+/**
+ Performs TDES decryption on a data buffer of the specified size in CBC mode.
+
+ This function performs TDES decryption on data buffer pointed by Input, of specified
+ size of InputSize, in CBC mode.
+ InputSize must be multiple of block size (8 bytes). This function does not perform
+ padding. Caller must perform padding, if necessary, to ensure valid input data size.
+ Initialization vector should be one block size (8 bytes).
+ TdesContext should be already correctly initialized by TdesInit(). Behavior with
+ invalid TDES context is undefined.
+
+ If TdesContext is NULL, then ASSERT().
+ If Input is NULL, then ASSERT().
+ If InputSize is not multiple of block size (8 bytes), then ASSERT().
+ If Ivec is NULL, then ASSERT().
+ If Output is NULL, then ASSERT().
+
+ @param[in] TdesContext Pointer to the TDES context.
+ @param[in] Input Pointer to the buffer containing the data to be encrypted.
+ @param[in] InputSize Size of the Input buffer in bytes.
+ @param[in] Ivec Pointer to initialization vector.
+ @param[out] Output Pointer to a buffer that receives the TDES encryption output.
+
+ @retval TRUE TDES decryption succeeded.
+ @retval FALSE TDES decryption failed.
+
+**/
+BOOLEAN
+EFIAPI
+TdesCbcDecrypt (
+ IN VOID *TdesContext,
+ IN CONST UINT8 *Input,
+ IN UINTN InputSize,
+ IN CONST UINT8 *Ivec,
+ OUT UINT8 *Output
+ );
+
+/**
+ Retrieves the size, in bytes, of the context buffer required for AES operations.
+
+ @return The size, in bytes, of the context buffer required for AES operations.
+
+**/
+UINTN
+EFIAPI
+AesGetContextSize (
+ VOID
+ );
+
+/**
+ Initializes user-supplied memory as AES context for subsequent use.
+
+ This function initializes user-supplied memory pointed by AesContext as AES context.
+ In addtion, it sets up all AES key materials for subsequent encryption and decryption
+ operations.
+ There are 3 options for key length, 128 bits, 192 bits, and 256 bits.
+
+ If AesContext is NULL, then ASSERT().
+ If Key is NULL, then ASSERT().
+ If KeyLength is not valid, then ASSERT().
+
+ @param[out] AesContext Pointer to AES context being initialized.
+ @param[in] Key Pointer to the user-supplied AES key.
+ @param[in] KeyLength Length of AES key in bits.
+
+ @retval TRUE AES context initialization succeeded.
+ @retval FALSE AES context initialization failed.
+
+**/
+BOOLEAN
+EFIAPI
+AesInit (
+ OUT VOID *AesContext,
+ IN CONST UINT8 *Key,
+ IN UINTN KeyLength
+ );
+
+/**
+ Performs AES encryption on a data buffer of the specified size in ECB mode.
+
+ This function performs AES encryption on data buffer pointed by Input, of specified
+ size of InputSize, in ECB mode.
+ InputSize must be multiple of block size (16 bytes). This function does not perform
+ padding. Caller must perform padding, if necessary, to ensure valid input data size.
+ AesContext should be already correctly initialized by AesInit(). Behavior with
+ invalid AES context is undefined.
+
+ If AesContext is NULL, then ASSERT().
+ If Input is NULL, then ASSERT().
+ If InputSize is not multiple of block size (16 bytes), then ASSERT().
+ If Output is NULL, then ASSERT().
+
+ @param[in] AesContext Pointer to the AES context.
+ @param[in] Input Pointer to the buffer containing the data to be encrypted.
+ @param[in] InputSize Size of the Input buffer in bytes.
+ @param[out] Output Pointer to a buffer that receives the AES encryption output.
+
+ @retval TRUE AES encryption succeeded.
+ @retval FALSE AES encryption failed.
+
+**/
+BOOLEAN
+EFIAPI
+AesEcbEncrypt (
+ IN VOID *AesContext,
+ IN CONST UINT8 *Input,
+ IN UINTN InputSize,
+ OUT UINT8 *Output
+ );
+
+/**
+ Performs AES decryption on a data buffer of the specified size in ECB mode.
+
+ This function performs AES decryption on data buffer pointed by Input, of specified
+ size of InputSize, in ECB mode.
+ InputSize must be multiple of block size (16 bytes). This function does not perform
+ padding. Caller must perform padding, if necessary, to ensure valid input data size.
+ AesContext should be already correctly initialized by AesInit(). Behavior with
+ invalid AES context is undefined.
+
+ If AesContext is NULL, then ASSERT().
+ If Input is NULL, then ASSERT().
+ If InputSize is not multiple of block size (16 bytes), then ASSERT().
+ If Output is NULL, then ASSERT().
+
+ @param[in] AesContext Pointer to the AES context.
+ @param[in] Input Pointer to the buffer containing the data to be decrypted.
+ @param[in] InputSize Size of the Input buffer in bytes.
+ @param[out] Output Pointer to a buffer that receives the AES decryption output.
+
+ @retval TRUE AES decryption succeeded.
+ @retval FALSE AES decryption failed.
+
+**/
+BOOLEAN
+EFIAPI
+AesEcbDecrypt (
+ IN VOID *AesContext,
+ IN CONST UINT8 *Input,
+ IN UINTN InputSize,
+ OUT UINT8 *Output
+ );
+
+/**
+ Performs AES encryption on a data buffer of the specified size in CBC mode.
+
+ This function performs AES encryption on data buffer pointed by Input, of specified
+ size of InputSize, in CBC mode.
+ InputSize must be multiple of block size (16 bytes). This function does not perform
+ padding. Caller must perform padding, if necessary, to ensure valid input data size.
+ Initialization vector should be one block size (16 bytes).
+ AesContext should be already correctly initialized by AesInit(). Behavior with
+ invalid AES context is undefined.
+
+ If AesContext is NULL, then ASSERT().
+ If Input is NULL, then ASSERT().
+ If InputSize is not multiple of block size (16 bytes), then ASSERT().
+ If Ivec is NULL, then ASSERT().
+ If Output is NULL, then ASSERT().
+
+ @param[in] AesContext Pointer to the AES context.
+ @param[in] Input Pointer to the buffer containing the data to be encrypted.
+ @param[in] InputSize Size of the Input buffer in bytes.
+ @param[in] Ivec Pointer to initialization vector.
+ @param[out] Output Pointer to a buffer that receives the AES encryption output.
+
+ @retval TRUE AES encryption succeeded.
+ @retval FALSE AES encryption failed.
+
+**/
+BOOLEAN
+EFIAPI
+AesCbcEncrypt (
+ IN VOID *AesContext,
+ IN CONST UINT8 *Input,
+ IN UINTN InputSize,
+ IN CONST UINT8 *Ivec,
+ OUT UINT8 *Output
+ );
+
+/**
+ Performs AES decryption on a data buffer of the specified size in CBC mode.
+
+ This function performs AES decryption on data buffer pointed by Input, of specified
+ size of InputSize, in CBC mode.
+ InputSize must be multiple of block size (16 bytes). This function does not perform
+ padding. Caller must perform padding, if necessary, to ensure valid input data size.
+ Initialization vector should be one block size (16 bytes).
+ AesContext should be already correctly initialized by AesInit(). Behavior with
+ invalid AES context is undefined.
+
+ If AesContext is NULL, then ASSERT().
+ If Input is NULL, then ASSERT().
+ If InputSize is not multiple of block size (16 bytes), then ASSERT().
+ If Ivec is NULL, then ASSERT().
+ If Output is NULL, then ASSERT().
+
+ @param[in] AesContext Pointer to the AES context.
+ @param[in] Input Pointer to the buffer containing the data to be encrypted.
+ @param[in] InputSize Size of the Input buffer in bytes.
+ @param[in] Ivec Pointer to initialization vector.
+ @param[out] Output Pointer to a buffer that receives the AES encryption output.
+
+ @retval TRUE AES decryption succeeded.
+ @retval FALSE AES decryption failed.
+
+**/
+BOOLEAN
+EFIAPI
+AesCbcDecrypt (
+ IN VOID *AesContext,
+ IN CONST UINT8 *Input,
+ IN UINTN InputSize,
+ IN CONST UINT8 *Ivec,
+ OUT UINT8 *Output
+ );
+
+/**
+ Retrieves the size, in bytes, of the context buffer required for ARC4 operations.
+
+ @return The size, in bytes, of the context buffer required for ARC4 operations.
+
+**/
+UINTN
+EFIAPI
+Arc4GetContextSize (
+ VOID
+ );
+
+/**
+ Initializes user-supplied memory as ARC4 context for subsequent use.
+
+ This function initializes user-supplied memory pointed by Arc4Context as ARC4 context.
+ In addtion, it sets up all ARC4 key materials for subsequent encryption and decryption
+ operations.
+
+ If Arc4Context is NULL, then ASSERT().
+ If Key is NULL, then ASSERT().
+ If KeySize does not in the range of [5, 256] bytes, then ASSERT().
+
+ @param[out] Arc4Context Pointer to ARC4 context being initialized.
+ @param[in] Key Pointer to the user-supplied ARC4 key.
+ @param[in] KeySize Size of ARC4 key in bytes.
+
+ @retval TRUE ARC4 context initialization succeeded.
+ @retval FALSE ARC4 context initialization failed.
+
+**/
+BOOLEAN
+EFIAPI
+Arc4Init (
+ OUT VOID *Arc4Context,
+ IN CONST UINT8 *Key,
+ IN UINTN KeySize
+ );
+
+/**
+ Performs ARC4 encryption on a data buffer of the specified size.
+
+ This function performs ARC4 encryption on data buffer pointed by Input, of specified
+ size of InputSize.
+ Arc4Context should be already correctly initialized by Arc4Init(). Behavior with
+ invalid ARC4 context is undefined.
+
+ If Arc4Context is NULL, then ASSERT().
+ If Input is NULL, then ASSERT().
+ If Output is NULL, then ASSERT().
+
+ @param[in] Arc4Context Pointer to the ARC4 context.
+ @param[in] Input Pointer to the buffer containing the data to be encrypted.
+ @param[in] InputSize Size of the Input buffer in bytes.
+ @param[out] Output Pointer to a buffer that receives the ARC4 encryption output.
+
+ @retval TRUE ARC4 encryption succeeded.
+ @retval FALSE ARC4 encryption failed.
+
+**/
+BOOLEAN
+EFIAPI
+Arc4Encrypt (
+ IN OUT VOID *Arc4Context,
+ IN CONST UINT8 *Input,
+ IN UINTN InputSize,
+ OUT UINT8 *Output
+ );
+
+/**
+ Performs ARC4 decryption on a data buffer of the specified size.
+
+ This function performs ARC4 decryption on data buffer pointed by Input, of specified
+ size of InputSize.
+ Arc4Context should be already correctly initialized by Arc4Init(). Behavior with
+ invalid ARC4 context is undefined.
+
+ If Arc4Context is NULL, then ASSERT().
+ If Input is NULL, then ASSERT().
+ If Output is NULL, then ASSERT().
+
+ @param[in] Arc4Context Pointer to the ARC4 context.
+ @param[in] Input Pointer to the buffer containing the data to be decrypted.
+ @param[in] InputSize Size of the Input buffer in bytes.
+ @param[out] Output Pointer to a buffer that receives the ARC4 decryption output.
+
+ @retval TRUE ARC4 decryption succeeded.
+ @retval FALSE ARC4 decryption failed.
+
+**/
+BOOLEAN
+EFIAPI
+Arc4Decrypt (
+ IN OUT VOID *Arc4Context,
+ IN UINT8 *Input,
+ IN UINTN InputSize,
+ OUT UINT8 *Output
+ );
+
+/**
+ Resets the ARC4 context to the initial state.
+
+ The function resets the ARC4 context to the state it had immediately after the
+ ARC4Init() function call.
+ Contrary to ARC4Init(), Arc4Reset() requires no secret key as input, but ARC4 context
+ should be already correctly initialized by ARC4Init().
+
+ If Arc4Context is NULL, then ASSERT().
+
+ @param[in, out] Arc4Context Pointer to the ARC4 context.
+
+ @retval TRUE ARC4 reset succeeded.
+ @retval FALSE ARC4 reset failed.
+
+**/
+BOOLEAN
+EFIAPI
+Arc4Reset (
+ IN OUT VOID *Arc4Context
+ );
//=====================================================================================
// Asymmetric Cryptography Primitive
//=====================================================================================
/**
- Allocates and Initializes one RSA Context for subsequent use.
+ Allocates and initializes one RSA context for subsequent use.
- @return Pointer to the RSA Context that has been initialized.
+ @return Pointer to the RSA context that has been initialized.
If the allocations fails, RsaNew() returns NULL.
**/
@@ -322,9 +1095,10 @@ RsaNew ( VOID
);
-
/**
- Release the specified RSA Context.
+ Release the specified RSA context.
+
+ If RsaContext is NULL, then ASSERT().
@param[in] RsaContext Pointer to the RSA context to be released.
@@ -335,32 +1109,159 @@ RsaFree ( IN VOID *RsaContext
);
-
/**
- Sets the tag-designated RSA key component into the established RSA context from
- the user-specified nonnegative integer (octet string format represented in RSA
- PKCS#1).
+ Sets the tag-designated key component into the established RSA context.
+
+ This function sets the tag-designated RSA key component into the established
+ RSA context from the user-specified non-negative integer (octet string format
+ represented in RSA PKCS#1).
+ If BigNumber is NULL, then the specified key componenet in RSA context is cleared.
If RsaContext is NULL, then ASSERT().
@param[in, out] RsaContext Pointer to RSA context being set.
@param[in] KeyTag Tag of RSA key component being set.
@param[in] BigNumber Pointer to octet integer buffer.
- @param[in] BnLength Length of big number buffer in bytes.
+ If NULL, then the specified key componenet in RSA
+ context is cleared.
+ @param[in] BnSize Size of big number buffer in bytes.
+ If BigNumber is NULL, then it is ignored.
- @return TRUE RSA key component was set successfully.
- @return FALSE Invalid RSA key component tag.
+ @retval TRUE RSA key component was set successfully.
+ @retval FALSE Invalid RSA key component tag.
**/
BOOLEAN
EFIAPI
RsaSetKey (
- IN OUT VOID *RsaContext,
- IN RSA_KEY_TAG KeyTag,
- IN CONST UINT8 *BigNumber,
- IN UINTN BnLength
+ IN OUT VOID *RsaContext,
+ IN RSA_KEY_TAG KeyTag,
+ IN CONST UINT8 *BigNumber,
+ IN UINTN BnSize
+ );
+
+/**
+ Gets the tag-designated RSA key component from the established RSA context.
+
+ This function retrieves the tag-designated RSA key component from the
+ established RSA context as a non-negative integer (octet string format
+ represented in RSA PKCS#1).
+ If specified key component has not been set or has been cleared, then returned
+ BnSize is set to 0.
+ If the BigNumber buffer is too small to hold the contents of the key, FALSE
+ is returned and BnSize is set to the required buffer size to obtain the key.
+
+ If RsaContext is NULL, then ASSERT().
+ If BnSize is NULL, then ASSERT().
+ If BnSize is large enough but BigNumber is NULL, then ASSERT().
+
+ @param[in, out] RsaContext Pointer to RSA context being set.
+ @param[in] KeyTag Tag of RSA key component being set.
+ @param[out] BigNumber Pointer to octet integer buffer.
+ @param[in, out] BnSize On input, the size of big number buffer in bytes.
+ On output, the size of data returned in big number buffer in bytes.
+
+ @retval TRUE RSA key component was retrieved successfully.
+ @retval FALSE Invalid RSA key component tag.
+ @retval FALSE BnSize is too small.
+
+**/
+BOOLEAN
+EFIAPI
+RsaGetKey (
+ IN OUT VOID *RsaContext,
+ IN RSA_KEY_TAG KeyTag,
+ OUT UINT8 *BigNumber,
+ IN OUT UINTN *BnSize
+ );
+
+/**
+ Generates RSA key components.
+
+ This function generates RSA key components. It takes RSA public exponent E and
+ length in bits of RSA modulus N as input, and generates all key components.
+ If PublicExponent is NULL, the default RSA public exponent (0x10001) will be used.
+
+ Before this function can be invoked, pseudorandom number generator must be correctly
+ initialized by RandomSeed().
+
+ If RsaContext is NULL, then ASSERT().
+
+ @param[in, out] RsaContext Pointer to RSA context being set.
+ @param[in] ModulusLength Length of RSA modulus N in bits.
+ @param[in] PublicExponent Pointer to RSA public exponent.
+ @param[in] PublicExponentSize Size of RSA public exponent buffer in bytes.
+
+ @retval TRUE RSA key component was generated successfully.
+ @retval FALSE Invalid RSA key component tag.
+
+**/
+BOOLEAN
+EFIAPI
+RsaGenerateKey (
+ IN OUT VOID *RsaContext,
+ IN UINTN ModulusLength,
+ IN CONST UINT8 *PublicExponent,
+ IN UINTN PublicExponentSize
+ );
+
+/**
+ Validates key components of RSA context.
+
+ This function validates key compoents of RSA context in following aspects:
+ - Whether p is a prime
+ - Whether q is a prime
+ - Whether n = p * q
+ - Whether d*e = 1 mod lcm(p-1,q-1)
+
+ If RsaContext is NULL, then ASSERT().
+
+ @param[in] RsaContext Pointer to RSA context to check.
+
+ @retval TRUE RSA key components are valid.
+ @retval FALSE RSA key components are not valid.
+
+**/
+BOOLEAN
+EFIAPI
+RsaCheckKey (
+ IN VOID *RsaContext
);
+/**
+ Carries out the RSA-SSA signature generation with EMSA-PKCS1-v1_5 encoding scheme.
+
+ This function carries out the RSA-SSA signature generation with EMSA-PKCS1-v1_5 encoding scheme defined in
+ RSA PKCS#1.
+ If the Signature buffer is too small to hold the contents of signature, FALSE
+ is returned and SigSize is set to the required buffer size to obtain the signature.
+
+ If RsaContext is NULL, then ASSERT().
+ If MessageHash is NULL, then ASSERT().
+ If HashSize is not equal to the size of MD5, SHA-1, SHA-256, SHA-224, SHA-512 or SHA-384 digest, then ASSERT().
+ If SigSize is large enough but Signature is NULL, then ASSERT().
+
+ @param[in] RsaContext Pointer to RSA context for signature generation.
+ @param[in] MessageHash Pointer to octet message hash to be signed.
+ @param[in] HashSize Size of the message hash in bytes.
+ @param[out] Signature Pointer to buffer to receive RSA PKCS1-v1_5 signature.
+ @param[in, out] SigSize On input, the size of Signature buffer in bytes.
+ On output, the size of data returned in Signature buffer in bytes.
+
+ @retval TRUE Signature successfully generated in PKCS1-v1_5.
+ @retval FALSE Signature generation failed.
+ @retval FALSE SigSize is too small.
+
+**/
+BOOLEAN
+EFIAPI
+RsaPkcs1Sign (
+ IN VOID *RsaContext,
+ IN CONST UINT8 *MessageHash,
+ IN UINTN HashSize,
+ OUT UINT8 *Signature,
+ IN OUT UINTN *SigSize
+ );
/**
Verifies the RSA-SSA signature with EMSA-PKCS1-v1_5 encoding scheme defined in
@@ -369,16 +1270,16 @@ RsaSetKey ( If RsaContext is NULL, then ASSERT().
If MessageHash is NULL, then ASSERT().
If Signature is NULL, then ASSERT().
- If HashLength is not equal to the size of MD5, SHA-1 or SHA-256 digest, then ASSERT().
+ If HashSize is not equal to the size of MD5, SHA-1, SHA-256, SHA-224, SHA-512 or SHA-384 digest, then ASSERT().
@param[in] RsaContext Pointer to RSA context for signature verification.
@param[in] MessageHash Pointer to octet message hash to be checked.
- @param[in] HashLength Length of the message hash in bytes.
+ @param[in] HashSize Size of the message hash in bytes.
@param[in] Signature Pointer to RSA PKCS1-v1_5 signature to be verified.
- @param[in] SigLength Length of signature in bytes.
+ @param[in] SigSize Size of signature in bytes.
- @return TRUE Valid signature encoded in PKCS1-v1_5.
- @return FALSE Invalid signature or invalid RSA context.
+ @retval TRUE Valid signature encoded in PKCS1-v1_5.
+ @retval FALSE Invalid signature or invalid RSA context.
**/
BOOLEAN
@@ -386,12 +1287,11 @@ EFIAPI RsaPkcs1Verify (
IN VOID *RsaContext,
IN CONST UINT8 *MessageHash,
- IN UINTN HashLength,
+ IN UINTN HashSize,
IN UINT8 *Signature,
- IN UINTN SigLength
+ IN UINTN SigSize
);
-
/**
Verifies the validility of a PKCS#7 signed data as described in "PKCS #7: Cryptographic
Message Syntax Standard".
@@ -399,27 +1299,227 @@ RsaPkcs1Verify ( If P7Data is NULL, then ASSERT().
@param[in] P7Data Pointer to the PKCS#7 message to verify.
- @param[in] P7Length Length of the PKCS#7 message in bytes.
+ @param[in] P7Size Size of the PKCS#7 message in bytes.
@param[in] TrustedCert Pointer to a trusted/root certificate encoded in DER, which
is used for certificate chain verification.
- @param[in] CertLength Length of the trusted certificate in bytes.
+ @param[in] CertSize Size of the trusted certificate in bytes.
@param[in] InData Pointer to the content to be verified.
- @param[in] DataLength Length of InData in bytes.
+ @param[in] DataSize Size of InData in bytes.
- @return TRUE The specified PKCS#7 signed data is valid.
- @return FALSE Invalid PKCS#7 signed data.
+ @retval TRUE The specified PKCS#7 signed data is valid.
+ @retval FALSE Invalid PKCS#7 signed data.
**/
BOOLEAN
EFIAPI
Pkcs7Verify (
IN CONST UINT8 *P7Data,
- IN UINTN P7Length,
+ IN UINTN P7Size,
IN CONST UINT8 *TrustedCert,
- IN UINTN CertLength,
+ IN UINTN CertSize,
IN CONST UINT8 *InData,
- IN UINTN DataLength
+ IN UINTN DataSize
+ );
+
+//=====================================================================================
+// DH Key Exchange Primitive
+//=====================================================================================
+
+/**
+ Allocates and Initializes one Diffie-Hellman Context for subsequent use.
+
+ @return Pointer to the Diffie-Hellman Context that has been initialized.
+ If the allocations fails, DhNew() returns NULL.
+
+**/
+VOID *
+EFIAPI
+DhNew (
+ VOID
+ );
+
+/**
+ Release the specified DH context.
+
+ If DhContext is NULL, then ASSERT().
+
+ @param[in] DhContext Pointer to the DH context to be released.
+
+**/
+VOID
+EFIAPI
+DhFree (
+ IN VOID *DhContext
+ );
+
+/**
+ Generates DH parameter.
+
+ Given generator g, and length of prime number p in bits, this function generates p,
+ and sets DH context according to value of g and p.
+
+ Before this function can be invoked, pseudorandom number generator must be correctly
+ initialized by RandomSeed().
+
+ If DhContext is NULL, then ASSERT().
+ If Prime is NULL, then ASSERT().
+
+ @param[in, out] DhContext Pointer to the DH context.
+ @param[in] Generator Value of generator.
+ @param[in] PrimeLength Length in bits of prime to be generated.
+ @param[out] Prime Pointer to the buffer to receive the generated prime number.
+
+ @retval TRUE DH pamameter generation succeeded.
+ @retval FALSE Value of Generator is not supported.
+ @retval FALSE PRNG fails to generate random prime number with PrimeLength.
+
+**/
+BOOLEAN
+EFIAPI
+DhGenerateParameter (
+ IN OUT VOID *DhContext,
+ IN UINTN Generator,
+ IN UINTN PrimeLength,
+ OUT UINT8 *Prime
+ );
+
+/**
+ Sets generator and prime parameters for DH.
+
+ Given generator g, and prime number p, this function and sets DH
+ context accordingly.
+
+ If DhContext is NULL, then ASSERT().
+ If Prime is NULL, then ASSERT().
+
+ @param[in, out] DhContext Pointer to the DH context.
+ @param[in] Generator Value of generator.
+ @param[in] PrimeLength Length in bits of prime to be generated.
+ @param[in] Prime Pointer to the prime number.
+
+ @retval TRUE DH pamameter setting succeeded.
+ @retval FALSE Value of Generator is not supported.
+ @retval FALSE Value of Generator is not suitable for the Prime.
+ @retval FALSE Value of Prime is not a prime number.
+ @retval FALSE Value of Prime is not a safe prime number.
+
+**/
+BOOLEAN
+EFIAPI
+DhSetParameter (
+ IN OUT VOID *DhContext,
+ IN UINTN Generator,
+ IN UINTN PrimeLength,
+ IN CONST UINT8 *Prime
);
+/**
+ Generates DH public key.
+
+ This function generates random secret exponent, and computes the public key, which is
+ returned via parameter PublicKey and PublicKeySize. DH context is updated accordingly.
+ If the PublicKey buffer is too small to hold the public key, FALSE is returned and
+ PublicKeySize is set to the required buffer size to obtain the public key.
+
+ If DhContext is NULL, then ASSERT().
+ If PublicKeySize is NULL, then ASSERT().
+ If PublicKeySize is large enough but PublicKey is NULL, then ASSERT().
+
+ @param[in, out] DhContext Pointer to the DH context.
+ @param[out] PublicKey Pointer to the buffer to receive generated public key.
+ @param[in, out] PublicKeySize On input, the size of PublicKey buffer in bytes.
+ On output, the size of data returned in PublicKey buffer in bytes.
+
+ @retval TRUE DH public key generation succeeded.
+ @retval FALSE DH public key generation failed.
+ @retval FALSE PublicKeySize is not large enough.
+
+**/
+BOOLEAN
+EFIAPI
+DhGenerateKey (
+ IN OUT VOID *DhContext,
+ OUT UINT8 *PublicKey,
+ IN OUT UINTN *PublicKeySize
+ );
+
+/**
+ Computes exchanged common key.
+
+ Given peer's public key, this function computes the exchanged common key, based on its own
+ context including value of prime modulus and random secret exponent.
+
+ If DhContext is NULL, then ASSERT().
+ If PeerPublicKey is NULL, then ASSERT().
+ If KeySize is NULL, then ASSERT().
+ If KeySize is large enough but Key is NULL, then ASSERT().
+
+ @param[in, out] DhContext Pointer to the DH context.
+ @param[in] PeerPublicKey Pointer to the peer's public key.
+ @param[in] PeerPublicKeySize Size of peer's public key in bytes.
+ @param[out] Key Pointer to the buffer to receive generated key.
+ @param[in, out] KeySize On input, the size of Key buffer in bytes.
+ On output, the size of data returned in Key buffer in bytes.
+
+ @retval TRUE DH exchanged key generation succeeded.
+ @retval FALSE DH exchanged key generation failed.
+ @retval FALSE KeySize is not large enough.
+
+**/
+BOOLEAN
+EFIAPI
+DhComputeKey (
+ IN OUT VOID *DhContext,
+ IN CONST UINT8 *PeerPublicKey,
+ IN UINTN PeerPublicKeySize,
+ OUT UINT8 *Key,
+ IN OUT UINTN *KeySize
+ );
+
+//=====================================================================================
+// Pseudo-Random Generation Primitive
+//=====================================================================================
+
+/**
+ Sets up the seed value for the pseudorandom number generator.
+
+ This function sets up the seed value for the pseudorandom number generator.
+ If Seed is not NULL, then the seed passed in is used.
+ If Seed is NULL, then default seed is used.
+
+ @param[in] Seed Pointer to seed value.
+ If NULL, default seed is used.
+ @param[in] SeedSize Size of seed value.
+ If Seed is NULL, this parameter is ignored.
+
+ @retval TRUE Pseudorandom number generator has enough entropy for random generation.
+ @retval FALSE Pseudorandom number generator does not have enough entropy for random generation.
+
+**/
+BOOLEAN
+EFIAPI
+RandomSeed (
+ IN CONST UINT8 *Seed OPTIONAL,
+ IN UINTN SeedSize
+ );
+
+/**
+ Generates a pseudorandom byte stream of the specified size.
+
+ If Output is NULL, then ASSERT().
+
+ @param[out] Output Pointer to buffer to receive random value.
+ @param[in] Size Size of randome bytes to generate.
+
+ @retval TRUE Pseudorandom byte stream generated successfully.
+ @retval FALSE Pseudorandom number generator fails to generate due to lack of entropy.
+
+**/
+BOOLEAN
+EFIAPI
+RandomBytes (
+ OUT UINT8 *Output,
+ IN UINTN Size
+ );
#endif // __BASE_CRYPT_LIB_H__
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