diff options
Diffstat (limited to 'CryptoPkg/Library/BaseCryptLibMbedTls/Pk/CryptPkcs1Oaep.c')
| -rw-r--r-- | CryptoPkg/Library/BaseCryptLibMbedTls/Pk/CryptPkcs1Oaep.c | 278 |
1 files changed, 278 insertions, 0 deletions
diff --git a/CryptoPkg/Library/BaseCryptLibMbedTls/Pk/CryptPkcs1Oaep.c b/CryptoPkg/Library/BaseCryptLibMbedTls/Pk/CryptPkcs1Oaep.c new file mode 100644 index 0000000000..61ccdd78e6 --- /dev/null +++ b/CryptoPkg/Library/BaseCryptLibMbedTls/Pk/CryptPkcs1Oaep.c @@ -0,0 +1,278 @@ +/** @file
+ This file contains UEFI wrapper functions for RSA PKCS1v2 OAEP encryption routines.
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+ Copyright (c) 2024, Intel Corporation. All rights reserved.<BR>
+
+**/
+
+#include "InternalCryptLib.h"
+#include <mbedtls/rsa.h>
+#include <mbedtls/x509_crt.h>
+#include <Library/MemoryAllocationLib.h>
+
+/**
+ Encrypts a blob using PKCS1v2 (RSAES-OAEP) schema. On success, will return the
+ encrypted message in a newly allocated buffer.
+
+ Things that can cause a failure include:
+ - X509 key size does not match any known key size.
+ - Fail to parse X509 certificate.
+ - Fail to allocate an intermediate buffer.
+ - Null pointer provided for a non-optional parameter.
+ - Data size is too large for the provided key size (max size is a function of key size
+ and hash digest size).
+
+ @param[in] PublicKey A pointer to the DER-encoded X509 certificate that
+ will be used to encrypt the data.
+ @param[in] PublicKeySize Size of the X509 cert buffer.
+ @param[in] InData Data to be encrypted.
+ @param[in] InDataSize Size of the data buffer.
+ @param[in] PrngSeed [Optional] If provided, a pointer to a random seed buffer
+ to be used when initializing the PRNG. NULL otherwise.
+ @param[in] PrngSeedSize [Optional] If provided, size of the random seed buffer.
+ 0 otherwise.
+ @param[out] EncryptedData Pointer to an allocated buffer containing the encrypted
+ message.
+ @param[out] EncryptedDataSize Size of the encrypted message buffer.
+
+ @retval TRUE Encryption was successful.
+ @retval FALSE Encryption failed.
+
+**/
+BOOLEAN
+EFIAPI
+Pkcs1v2Encrypt (
+ IN CONST UINT8 *PublicKey,
+ IN UINTN PublicKeySize,
+ IN UINT8 *InData,
+ IN UINTN InDataSize,
+ IN CONST UINT8 *PrngSeed OPTIONAL,
+ IN UINTN PrngSeedSize OPTIONAL,
+ OUT UINT8 **EncryptedData,
+ OUT UINTN *EncryptedDataSize
+ )
+{
+ BOOLEAN Result;
+ UINT32 Ret;
+ UINT8 *OutData;
+ mbedtls_x509_crt CertContext;
+ mbedtls_rsa_context RsaContext;
+
+ //
+ // Check input parameters.
+ //
+ if ((PublicKey == NULL) || (InData == NULL) ||
+ (EncryptedData == NULL) || (EncryptedDataSize == NULL))
+ {
+ return FALSE;
+ }
+
+ //
+ // Check public key size.
+ //
+ if (PublicKeySize > UINT_MAX) {
+ //
+ // Public key size is too large for implementation.
+ //
+ return FALSE;
+ }
+
+ *EncryptedData = NULL;
+ *EncryptedDataSize = 0;
+ Result = FALSE;
+ OutData = NULL;
+
+ mbedtls_x509_crt_init (&CertContext);
+
+ if (mbedtls_x509_crt_parse_der (&CertContext, PublicKey, (UINT32)PublicKeySize) != 0) {
+ goto _Exit;
+ }
+
+ if (mbedtls_pk_get_type (&CertContext.pk) != MBEDTLS_PK_RSA) {
+ goto _Exit;
+ }
+
+ mbedtls_rsa_init (&RsaContext);
+ if (mbedtls_rsa_set_padding (&RsaContext, MBEDTLS_RSA_PKCS_V21, MBEDTLS_MD_NONE) != 0) {
+ goto _Exit;
+ }
+
+ Ret = mbedtls_rsa_copy (&RsaContext, mbedtls_pk_rsa (CertContext.pk));
+ if (Ret != 0) {
+ goto _Exit;
+ }
+
+ *EncryptedDataSize = RsaContext.len;
+
+ //
+ // Allocate a buffer for the output data.
+ //
+ OutData = AllocateZeroPool (*EncryptedDataSize);
+ if (OutData == NULL) {
+ //
+ // Fail to allocate the output buffer.
+ //
+ goto _Exit;
+ }
+
+ Ret = mbedtls_rsa_pkcs1_encrypt (
+ &RsaContext,
+ MbedtlsRand,
+ NULL,
+ InDataSize,
+ InData,
+ OutData
+ );
+ if (Ret != 0) {
+ FreePool (OutData);
+ OutData = NULL;
+ goto _Exit;
+ }
+
+ *EncryptedData = OutData;
+ Result = TRUE;
+
+_Exit:
+ //
+ // Release Resources
+ //
+ if (&CertContext != NULL) {
+ mbedtls_x509_crt_free (&CertContext);
+ }
+
+ if (&RsaContext != NULL) {
+ mbedtls_rsa_free (&RsaContext);
+ }
+
+ return Result;
+}
+
+/**
+ Encrypts a blob using PKCS1v2 (RSAES-OAEP) schema. On success, will return the
+ encrypted message in a newly allocated buffer.
+
+ Things that can cause a failure include:
+ - X509 key size does not match any known key size.
+ - Fail to allocate an intermediate buffer.
+ - Null pointer provided for a non-optional parameter.
+ - Data size is too large for the provided key size (max size is a function of key size
+ and hash digest size).
+
+ @param[in] RsaContext A pointer to an RSA context created by RsaNew() and
+ provisioned with a public key using RsaSetKey().
+ @param[in] InData Data to be encrypted.
+ @param[in] InDataSize Size of the data buffer.
+ @param[in] PrngSeed [Optional] If provided, a pointer to a random seed buffer
+ to be used when initializing the PRNG. NULL otherwise.
+ @param[in] PrngSeedSize [Optional] If provided, size of the random seed buffer.
+ 0 otherwise.
+ @param[in] DigestLen [Optional] If provided, size of the hash used:
+ SHA1_DIGEST_SIZE
+ SHA256_DIGEST_SIZE
+ SHA384_DIGEST_SIZE
+ SHA512_DIGEST_SIZE
+ 0 to use default (SHA1)
+ @param[out] EncryptedData Pointer to an allocated buffer containing the encrypted
+ message.
+ @param[out] EncryptedDataSize Size of the encrypted message buffer.
+
+ @retval TRUE Encryption was successful.
+ @retval FALSE Encryption failed.
+
+**/
+BOOLEAN
+EFIAPI
+RsaOaepEncrypt (
+ IN VOID *RsaContext,
+ IN UINT8 *InData,
+ IN UINTN InDataSize,
+ IN CONST UINT8 *PrngSeed OPTIONAL,
+ IN UINTN PrngSeedSize OPTIONAL,
+ IN UINT16 DigestLen OPTIONAL,
+ OUT UINT8 **EncryptedData,
+ OUT UINTN *EncryptedDataSize
+ )
+{
+ ASSERT (FALSE);
+ return FALSE;
+}
+
+/**
+ Decrypts a blob using PKCS1v2 (RSAES-OAEP) schema. On success, will return the
+ decrypted message in a newly allocated buffer.
+
+ Things that can cause a failure include:
+ - Fail to parse private key.
+ - Fail to allocate an intermediate buffer.
+ - Null pointer provided for a non-optional parameter.
+
+ @param[in] PrivateKey A pointer to the DER-encoded private key.
+ @param[in] PrivateKeySize Size of the private key buffer.
+ @param[in] EncryptedData Data to be decrypted.
+ @param[in] EncryptedDataSize Size of the encrypted buffer.
+ @param[out] OutData Pointer to an allocated buffer containing the encrypted
+ message.
+ @param[out] OutDataSize Size of the encrypted message buffer.
+
+ @retval TRUE Encryption was successful.
+ @retval FALSE Encryption failed.
+
+**/
+BOOLEAN
+EFIAPI
+Pkcs1v2Decrypt (
+ IN CONST UINT8 *PrivateKey,
+ IN UINTN PrivateKeySize,
+ IN UINT8 *EncryptedData,
+ IN UINTN EncryptedDataSize,
+ OUT UINT8 **OutData,
+ OUT UINTN *OutDataSize
+ )
+{
+ ASSERT (FALSE);
+ return FALSE;
+}
+
+/**
+ Decrypts a blob using PKCS1v2 (RSAES-OAEP) schema. On success, will return the
+ decrypted message in a newly allocated buffer.
+
+ Things that can cause a failure include:
+ - Fail to parse private key.
+ - Fail to allocate an intermediate buffer.
+ - Null pointer provided for a non-optional parameter.
+
+ @param[in] RsaContext A pointer to an RSA context created by RsaNew() and
+ provisioned with a private key using RsaSetKey().
+ @param[in] EncryptedData Data to be decrypted.
+ @param[in] EncryptedDataSize Size of the encrypted buffer.
+ @param[in] DigestLen [Optional] If provided, size of the hash used:
+ SHA1_DIGEST_SIZE
+ SHA256_DIGEST_SIZE
+ SHA384_DIGEST_SIZE
+ SHA512_DIGEST_SIZE
+ 0 to use default (SHA1)
+ @param[out] OutData Pointer to an allocated buffer containing the encrypted
+ message.
+ @param[out] OutDataSize Size of the encrypted message buffer.
+
+ @retval TRUE Encryption was successful.
+ @retval FALSE Encryption failed.
+
+**/
+BOOLEAN
+EFIAPI
+RsaOaepDecrypt (
+ IN VOID *RsaContext,
+ IN UINT8 *EncryptedData,
+ IN UINTN EncryptedDataSize,
+ IN UINT16 DigestLen OPTIONAL,
+ OUT UINT8 **OutData,
+ OUT UINTN *OutDataSize
+ )
+{
+ ASSERT (FALSE);
+ return FALSE;
+}
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