[edk2-devel] [PATCH 1/3] CryptoPkg/BaseCryptLib: add additional RSAEP-OAEP crypto functions

["Chris Ruffin via groups.io" <cruffin=millcore.com@groups.io>]

From: Chris Ruffin <v-chruffin@microsoft.com>

Expand the availability of the RSAEP-OAEP crypto capability in
BaseCryptLib.  Applications using RSA crypto functions directly from
OpensslLib can transition to BaseCryptLib to take advantage of the
shared crypto feature in CryptoDxe.

Pkcs1v2Decrypt(): decryption using DER-encoded private key
RsaOaepEncrypt(): encryption using RSA contexts
RsaOaepDecrypt(): decryption using RSA contexts

Signed-off-by: Chris Ruffin <v-chruffin@microsoft.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Yi Li <yi1.li@intel.com>
Cc: Wenxing Hou <wenxing.hou@intel.com>
---
 CryptoPkg/Include/Library/BaseCryptLib.h      | 102 ++++
 .../Library/BaseCryptLib/Pk/CryptPkcs1Oaep.c  | 506 ++++++++++++++++--
 .../BaseCryptLib/Pk/CryptPkcs1OaepNull.c      | 114 ++++
 .../BaseCryptLibNull/Pk/CryptPkcs1OaepNull.c  | 114 ++++
 4 files changed, 789 insertions(+), 47 deletions(-)

diff --git a/CryptoPkg/Include/Library/BaseCryptLib.h b/CryptoPkg/Include/Library/BaseCryptLib.h
index a52bd91ad6..7ad2bf21fe 100644
--- a/CryptoPkg/Include/Library/BaseCryptLib.h
+++ b/CryptoPkg/Include/Library/BaseCryptLib.h
@@ -2147,6 +2147,108 @@ Pkcs1v2Encrypt (
   OUT  UINTN        *EncryptedDataSize
   );
 
+/**
+  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[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,
+  OUT  UINT8        **EncryptedData,
+  OUT  UINTN        *EncryptedDataSize
+  );
+
+/**
+  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
+  );
+
+/**
+  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[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,
+  OUT  UINT8  **OutData,
+  OUT  UINTN  *OutDataSize
+  );
+
 /**
   The 3rd parameter of Pkcs7GetSigners will return all embedded
   X.509 certificate in one given PKCS7 signature. The format is:
diff --git a/CryptoPkg/Library/BaseCryptLib/Pk/CryptPkcs1Oaep.c b/CryptoPkg/Library/BaseCryptLib/Pk/CryptPkcs1Oaep.c
index ea43c1381c..00e904dd6c 100644
--- a/CryptoPkg/Library/BaseCryptLib/Pk/CryptPkcs1Oaep.c
+++ b/CryptoPkg/Library/BaseCryptLib/Pk/CryptPkcs1Oaep.c
@@ -26,9 +26,8 @@
   - 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
+  @param[in]  Pkey                A pointer to an EVP_PKEY struct 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
@@ -45,9 +44,8 @@
 **/
 BOOLEAN
 EFIAPI
-Pkcs1v2Encrypt (
-  IN   CONST UINT8  *PublicKey,
-  IN   UINTN        PublicKeySize,
+InternalPkcs1v2Encrypt (
+  EVP_PKEY          *Pkey,
   IN   UINT8        *InData,
   IN   UINTN        InDataSize,
   IN   CONST UINT8  *PrngSeed   OPTIONAL,
@@ -57,9 +55,6 @@ Pkcs1v2Encrypt (
   )
 {
   BOOLEAN       Result;
-  CONST UINT8   *TempPointer;
-  X509          *CertData;
-  EVP_PKEY      *InternalPublicKey;
   EVP_PKEY_CTX  *PkeyCtx;
   UINT8         *OutData;
   UINTN         OutDataSize;
@@ -67,28 +62,15 @@ Pkcs1v2Encrypt (
   //
   // Check input parameters.
   //
-  if ((PublicKey == NULL) || (InData == NULL) ||
+  if ((Pkey == NULL) || (InData == NULL) ||
       (EncryptedData == NULL) || (EncryptedDataSize == NULL))
   {
     return FALSE;
   }
 
-  //
-  // Check public key size.
-  //
-  if (PublicKeySize > 0xFFFFFFFF) {
-    //
-    // Public key size is too large for implementation.
-    //
-    return FALSE;
-  }
-
   *EncryptedData     = NULL;
   *EncryptedDataSize = 0;
   Result             = FALSE;
-  TempPointer        = NULL;
-  CertData           = NULL;
-  InternalPublicKey  = NULL;
   PkeyCtx            = NULL;
   OutData            = NULL;
   OutDataSize        = 0;
@@ -104,6 +86,154 @@ Pkcs1v2Encrypt (
     RandomSeed (NULL, 0);
   }
 
+  //
+  // Create a context for the public key operation.
+  //
+  PkeyCtx = EVP_PKEY_CTX_new (Pkey, NULL);
+  if (PkeyCtx == NULL) {
+    //
+    // Fail to create contex.
+    //
+    goto _Exit;
+  }
+
+  //
+  // Initialize the context and set the desired padding.
+  //
+  if ((EVP_PKEY_encrypt_init (PkeyCtx) <= 0) ||
+      (EVP_PKEY_CTX_set_rsa_padding (PkeyCtx, RSA_PKCS1_OAEP_PADDING) <= 0))
+  {
+    //
+    // Fail to initialize the context.
+    //
+    goto _Exit;
+  }
+
+  //
+  // Determine the required buffer length for malloc'ing.
+  //
+  if (EVP_PKEY_encrypt (PkeyCtx, NULL, &OutDataSize, InData, InDataSize) <= 0) {
+    //
+    // Fail to determine output buffer size.
+    //
+    goto _Exit;
+  }
+
+  //
+  // Allocate a buffer for the output data.
+  //
+  OutData = AllocatePool (OutDataSize);
+  if (OutData == NULL) {
+    //
+    // Fail to allocate the output buffer.
+    //
+    goto _Exit;
+  }
+
+  //
+  // Encrypt Data.
+  //
+  if (EVP_PKEY_encrypt (PkeyCtx, OutData, &OutDataSize, InData, InDataSize) <= 0) {
+    //
+    // Fail to encrypt data, need to free the output buffer.
+    //
+    FreePool (OutData);
+    OutData     = NULL;
+    OutDataSize = 0;
+    goto _Exit;
+  }
+
+  //
+  // Encrypt done.
+  //
+  *EncryptedData     = OutData;
+  *EncryptedDataSize = OutDataSize;
+  Result             = TRUE;
+
+_Exit:
+  //
+  // Release Resources
+  //
+  if (PkeyCtx != NULL) {
+    EVP_PKEY_CTX_free (PkeyCtx);
+  }
+
+  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 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;
+  CONST UINT8  *TempPointer;
+  X509         *CertData;
+  EVP_PKEY     *Pkey;
+
+  //
+  // Check input parameters.
+  //
+  if ((PublicKey == NULL) || (InData == NULL) ||
+      (EncryptedData == NULL) || (EncryptedDataSize == NULL))
+  {
+    return FALSE;
+  }
+
+  //
+  // Check public key size.
+  //
+  if (PublicKeySize > 0xFFFFFFFF) {
+    //
+    // Public key size is too large for implementation.
+    //
+    return FALSE;
+  }
+
+  *EncryptedData     = NULL;
+  *EncryptedDataSize = 0;
+  Result             = FALSE;
+  TempPointer        = NULL;
+  CertData           = NULL;
+  Pkey               = NULL;
+
   //
   // Parse the X509 cert and extract the public key.
   //
@@ -120,52 +250,201 @@ Pkcs1v2Encrypt (
   // Extract the public key from the x509 cert in a format that
   // OpenSSL can use.
   //
-  InternalPublicKey = X509_get_pubkey (CertData);
-  if (InternalPublicKey == NULL) {
+  Pkey = X509_get_pubkey (CertData);
+  if (Pkey == NULL) {
     //
     // Fail to extract public key.
     //
     goto _Exit;
   }
 
+  Result = InternalPkcs1v2Encrypt (Pkey, InData, InDataSize, PrngSeed, PrngSeedSize, EncryptedData, EncryptedDataSize);
+
+_Exit:
   //
-  // Create a context for the public key operation.
+  // Release Resources
+  //
+  if (CertData != NULL) {
+    X509_free (CertData);
+  }
+
+  if (Pkey != NULL) {
+    EVP_PKEY_free (Pkey);
+  }
+
+  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[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,
+  OUT  UINT8        **EncryptedData,
+  OUT  UINTN        *EncryptedDataSize
+  )
+{
+  BOOLEAN   Result;
+  EVP_PKEY  *Pkey;
+
   //
-  PkeyCtx = EVP_PKEY_CTX_new (InternalPublicKey, NULL);
+  // Check input parameters.
+  //
+  if (((RsaContext == NULL) || (InData == NULL)) ||
+      (EncryptedData == NULL) || (EncryptedDataSize == NULL))
+  {
+    return FALSE;
+  }
+
+  *EncryptedData     = NULL;
+  *EncryptedDataSize = 0;
+  Result             = FALSE;
+  Pkey               = NULL;
+
+  Pkey = EVP_PKEY_new ();
+  if (Pkey == NULL) {
+    goto _Exit;
+  }
+
+  if (EVP_PKEY_set1_RSA (Pkey, (RSA *)RsaContext) == 0) {
+    goto _Exit;
+  }
+
+  Result = InternalPkcs1v2Encrypt (Pkey, InData, InDataSize, PrngSeed, PrngSeedSize, EncryptedData, EncryptedDataSize);
+
+_Exit:
+  //
+  // Release Resources
+  //
+  if (Pkey != NULL) {
+    EVP_PKEY_free (Pkey);
+  }
+
+  return Result;
+}
+
+/**
+  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]  Pkey                A pointer to an EVP_PKEY which will decrypt that data.
+  @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
+InternalPkcs1v2Decrypt (
+  EVP_PKEY    *Pkey,
+  IN   UINT8  *EncryptedData,
+  IN   UINTN  EncryptedDataSize,
+  OUT  UINT8  **OutData,
+  OUT  UINTN  *OutDataSize
+  )
+{
+  BOOLEAN       Result;
+  EVP_PKEY_CTX  *PkeyCtx;
+  UINT8         *TempData;
+  UINTN         TempDataSize;
+  INTN          ReturnCode;
+
+  //
+  // Check input parameters.
+  //
+  if ((Pkey == NULL) || (EncryptedData == NULL) ||
+      (OutData == NULL) || (OutDataSize == NULL))
+  {
+    return FALSE;
+  }
+
+  Result       = FALSE;
+  PkeyCtx      = NULL;
+  TempData     = NULL;
+  TempDataSize = 0;
+
+  //
+  // Create a context for the decryption operation.
+  //
+  PkeyCtx = EVP_PKEY_CTX_new (Pkey, NULL);
   if (PkeyCtx == NULL) {
     //
     // Fail to create contex.
     //
+    DEBUG ((DEBUG_ERROR, "[%a] EVP_PKEY_CTK_new() failed\n", __func__));
     goto _Exit;
   }
 
   //
   // Initialize the context and set the desired padding.
   //
-  if ((EVP_PKEY_encrypt_init (PkeyCtx) <= 0) ||
+  if ((EVP_PKEY_decrypt_init (PkeyCtx) <= 0) ||
       (EVP_PKEY_CTX_set_rsa_padding (PkeyCtx, RSA_PKCS1_OAEP_PADDING) <= 0))
   {
     //
     // Fail to initialize the context.
     //
+    DEBUG ((DEBUG_ERROR, "[%a] EVP_PKEY_decrypt_init() failed\n", __func__));
     goto _Exit;
   }
 
   //
   // Determine the required buffer length for malloc'ing.
   //
-  if (EVP_PKEY_encrypt (PkeyCtx, NULL, &OutDataSize, InData, InDataSize) <= 0) {
+  ReturnCode = EVP_PKEY_decrypt (PkeyCtx, NULL, &TempDataSize, EncryptedData, EncryptedDataSize);
+  if (ReturnCode <= 0) {
     //
     // Fail to determine output buffer size.
     //
+    DEBUG ((DEBUG_ERROR, "[%a] EVP_PKEY_decrypt() failed to determine output buffer size (rc=%d)\n", __func__, ReturnCode));
     goto _Exit;
   }
 
   //
   // Allocate a buffer for the output data.
   //
-  OutData = AllocatePool (OutDataSize);
-  if (OutData == NULL) {
+  TempData = AllocatePool (TempDataSize);
+  if (TempData == NULL) {
     //
     // Fail to allocate the output buffer.
     //
@@ -173,39 +452,172 @@ Pkcs1v2Encrypt (
   }
 
   //
-  // Encrypt Data.
+  // Decrypt Data.
   //
-  if (EVP_PKEY_encrypt (PkeyCtx, OutData, &OutDataSize, InData, InDataSize) <= 0) {
+  ReturnCode = EVP_PKEY_decrypt (PkeyCtx, TempData, &TempDataSize, EncryptedData, EncryptedDataSize);
+  if (ReturnCode <= 0) {
     //
-    // Fail to encrypt data, need to free the output buffer.
+    // Fail to decrypt data, need to free the output buffer.
     //
-    FreePool (OutData);
-    OutData     = NULL;
-    OutDataSize = 0;
+    FreePool (TempData);
+    TempData     = NULL;
+    TempDataSize = 0;
+
+    DEBUG ((DEBUG_ERROR, "[%a] EVP_PKEY_decrypt(TempData) failed to decrypt (rc=%d)\n", __func__, ReturnCode));
     goto _Exit;
   }
 
   //
-  // Encrypt done.
+  // Decrypt done.
   //
-  *EncryptedData     = OutData;
-  *EncryptedDataSize = OutDataSize;
-  Result             = TRUE;
+  *OutData     = TempData;
+  *OutDataSize = TempDataSize;
+  Result       = TRUE;
 
 _Exit:
+  if (PkeyCtx != NULL) {
+    EVP_PKEY_CTX_free (PkeyCtx);
+  }
+
+  return Result;
+}
+
+/**
+  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
+  )
+{
+  BOOLEAN      Result;
+  EVP_PKEY     *Pkey;
+  CONST UINT8  *TempPointer;
+
   //
-  // Release Resources
+  // Check input parameters.
   //
-  if (CertData != NULL) {
-    X509_free (CertData);
+  if ((PrivateKey == NULL) || (EncryptedData == NULL) ||
+      (OutData == NULL) || (OutDataSize == NULL))
+  {
+    return FALSE;
+  }
+
+  Result      = FALSE;
+  Pkey        = NULL;
+  TempPointer = NULL;
+
+  //
+  // Parse the private key.
+  //
+  TempPointer = PrivateKey;
+  Pkey        = d2i_PrivateKey (EVP_PKEY_RSA, &Pkey, &TempPointer, (UINT32)PrivateKeySize);
+  if (Pkey == NULL) {
+    //
+    // Fail to parse private key.
+    //
+    DEBUG ((DEBUG_ERROR, "[%a] d2i_PrivateKey() failed\n", __func__));
+    goto _Exit;
   }
 
-  if (InternalPublicKey != NULL) {
-    EVP_PKEY_free (InternalPublicKey);
+  Result = InternalPkcs1v2Decrypt (Pkey, EncryptedData, EncryptedDataSize, OutData, OutDataSize);
+
+_Exit:
+  if (Pkey != NULL) {
+    EVP_PKEY_free (Pkey);
   }
 
-  if (PkeyCtx != NULL) {
-    EVP_PKEY_CTX_free (PkeyCtx);
+  return Result;
+}
+
+/**
+  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[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,
+  OUT  UINT8  **OutData,
+  OUT  UINTN  *OutDataSize
+  )
+{
+  BOOLEAN   Result;
+  EVP_PKEY  *Pkey;
+
+  //
+  // Check input parameters.
+  //
+  if ((RsaContext == NULL) || (EncryptedData == NULL) ||
+      (OutData == NULL) || (OutDataSize == NULL))
+  {
+    return FALSE;
+  }
+
+  Result = FALSE;
+  Pkey   = NULL;
+
+  //
+  // Create a context for the decryption operation.
+  //
+
+  Pkey = EVP_PKEY_new ();
+  if (Pkey == NULL) {
+    goto _Exit;
+  }
+
+  if (EVP_PKEY_set1_RSA (Pkey, (RSA *)RsaContext) == 0) {
+    goto _Exit;
+  }
+
+  Result = InternalPkcs1v2Decrypt (Pkey, EncryptedData, EncryptedDataSize, OutData, OutDataSize);
+
+_Exit:
+  if (Pkey != NULL) {
+    EVP_PKEY_free (Pkey);
   }
 
   return Result;
diff --git a/CryptoPkg/Library/BaseCryptLib/Pk/CryptPkcs1OaepNull.c b/CryptoPkg/Library/BaseCryptLib/Pk/CryptPkcs1OaepNull.c
index 36508947c5..05e074d18e 100644
--- a/CryptoPkg/Library/BaseCryptLib/Pk/CryptPkcs1OaepNull.c
+++ b/CryptoPkg/Library/BaseCryptLib/Pk/CryptPkcs1OaepNull.c
@@ -48,3 +48,117 @@ Pkcs1v2Encrypt (
   ASSERT (FALSE);
   return FALSE;
 }
+
+/**
+  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[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,
+  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[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,
+  OUT  UINT8  **OutData,
+  OUT  UINTN  *OutDataSize
+  )
+{
+  ASSERT (FALSE);
+  return FALSE;
+}
diff --git a/CryptoPkg/Library/BaseCryptLibNull/Pk/CryptPkcs1OaepNull.c b/CryptoPkg/Library/BaseCryptLibNull/Pk/CryptPkcs1OaepNull.c
index 36508947c5..05e074d18e 100644
--- a/CryptoPkg/Library/BaseCryptLibNull/Pk/CryptPkcs1OaepNull.c
+++ b/CryptoPkg/Library/BaseCryptLibNull/Pk/CryptPkcs1OaepNull.c
@@ -48,3 +48,117 @@ Pkcs1v2Encrypt (
   ASSERT (FALSE);
   return FALSE;
 }
+
+/**
+  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[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,
+  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[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,
+  OUT  UINT8  **OutData,
+  OUT  UINTN  *OutDataSize
+  )
+{
+  ASSERT (FALSE);
+  return FALSE;
+}
-- 
2.44.0.windows.1



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