diff options
Diffstat (limited to 'CryptoPkg/Library/BaseCryptLib/Pk/CryptDh.c')
| -rw-r--r-- | CryptoPkg/Library/BaseCryptLib/Pk/CryptDh.c | 328 |
1 files changed, 0 insertions, 328 deletions
diff --git a/CryptoPkg/Library/BaseCryptLib/Pk/CryptDh.c b/CryptoPkg/Library/BaseCryptLib/Pk/CryptDh.c deleted file mode 100644 index 942b3d103e..0000000000 --- a/CryptoPkg/Library/BaseCryptLib/Pk/CryptDh.c +++ /dev/null @@ -1,328 +0,0 @@ -/** @file
- Diffie-Hellman Wrapper Implementation over OpenSSL.
-
-Copyright (c) 2010 - 2012, Intel Corporation. All rights reserved.<BR>
-This program and the accompanying materials
-are licensed and made available under the terms and conditions of the BSD License
-which accompanies this distribution. The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#include "InternalCryptLib.h"
-#include <openssl/dh.h>
-
-
-/**
- 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
- )
-{
- //
- // Allocates & Initializes DH Context by OpenSSL DH_new()
- //
- return (VOID *) DH_new ();
-}
-
-/**
- Release the specified DH context.
-
- If DhContext is NULL, then return FALSE.
-
- @param[in] DhContext Pointer to the DH context to be released.
-
-**/
-VOID
-EFIAPI
-DhFree (
- IN VOID *DhContext
- )
-{
- //
- // Free OpenSSL DH Context
- //
- DH_free ((DH *) 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 return FALSE.
- If Prime is NULL, then return FALSE.
-
- @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
- )
-{
- BOOLEAN RetVal;
-
- //
- // Check input parameters.
- //
- if (DhContext == NULL || Prime == NULL || PrimeLength > INT_MAX) {
- return FALSE;
- }
-
- if (Generator != DH_GENERATOR_2 && Generator != DH_GENERATOR_5) {
- return FALSE;
- }
-
- RetVal = (BOOLEAN) DH_generate_parameters_ex (DhContext, (UINT32) PrimeLength, (UINT32) Generator, NULL);
- if (!RetVal) {
- return FALSE;
- }
-
- BN_bn2bin (((DH *) DhContext)->p, Prime);
-
- return TRUE;
-}
-
-/**
- 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 return FALSE.
- If Prime is NULL, then return FALSE.
-
- @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
- )
-{
- DH *Dh;
- BIGNUM *Bn;
-
- //
- // Check input parameters.
- //
- if (DhContext == NULL || Prime == NULL || PrimeLength > INT_MAX) {
- return FALSE;
- }
-
- if (Generator != DH_GENERATOR_2 && Generator != DH_GENERATOR_5) {
- return FALSE;
- }
-
- Bn = NULL;
-
- Dh = (DH *) DhContext;
- Dh->g = NULL;
- Dh->p = BN_new ();
- if (Dh->p == NULL) {
- goto Error;
- }
-
- Dh->g = BN_new ();
- if (Dh->g == NULL) {
- goto Error;
- }
-
- Bn = BN_bin2bn (Prime, (UINT32) (PrimeLength / 8), Dh->p);
- if (Bn == NULL) {
- goto Error;
- }
-
- if (BN_set_word (Dh->g, (UINT32) Generator) == 0) {
- goto Error;
- }
-
- return TRUE;
-
-Error:
-
- if (Dh->p != NULL) {
- BN_free (Dh->p);
- }
-
- if (Dh->g != NULL) {
- BN_free (Dh->g);
- }
-
- if (Bn != NULL) {
- BN_free (Bn);
- }
-
- return FALSE;
-}
-
-/**
- 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 return FALSE.
- If PublicKeySize is NULL, then return FALSE.
- If PublicKeySize is large enough but PublicKey is NULL, then return FALSE.
-
- @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
- )
-{
- BOOLEAN RetVal;
- DH *Dh;
- INTN Size;
-
- //
- // Check input parameters.
- //
- if (DhContext == NULL || PublicKeySize == NULL) {
- return FALSE;
- }
-
- if (PublicKey == NULL && *PublicKeySize != 0) {
- return FALSE;
- }
-
- Dh = (DH *) DhContext;
-
- RetVal = (BOOLEAN) DH_generate_key (DhContext);
- if (RetVal) {
- Size = BN_num_bytes (Dh->pub_key);
- if ((Size > 0) && (*PublicKeySize < (UINTN) Size)) {
- *PublicKeySize = Size;
- return FALSE;
- }
-
- BN_bn2bin (Dh->pub_key, PublicKey);
- *PublicKeySize = Size;
- }
-
- return RetVal;
-}
-
-/**
- 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 return FALSE.
- If PeerPublicKey is NULL, then return FALSE.
- If KeySize is NULL, then return FALSE.
- If Key is NULL, then return FALSE.
- If KeySize is not large enough, then return FALSE.
-
- @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
- )
-{
- BIGNUM *Bn;
- INTN Size;
-
- //
- // Check input parameters.
- //
- if (DhContext == NULL || PeerPublicKey == NULL || KeySize == NULL || Key == NULL) {
- return FALSE;
- }
-
- if (PeerPublicKeySize > INT_MAX) {
- return FALSE;
- }
-
- Bn = BN_bin2bn (PeerPublicKey, (UINT32) PeerPublicKeySize, NULL);
- if (Bn == NULL) {
- return FALSE;
- }
-
- Size = DH_compute_key (Key, Bn, DhContext);
- if (Size < 0) {
- BN_free (Bn);
- return FALSE;
- }
-
- if (*KeySize < (UINTN) Size) {
- *KeySize = Size;
- BN_free (Bn);
- return FALSE;
- }
-
- *KeySize = Size;
- BN_free (Bn);
- return TRUE;
-}
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