CryptSha1.c

Go to the documentation of this file.

 
#include "InternalCryptLib.h"
#include <openssl/sha.h>
 
#ifndef DISABLE_SHA1_DEPRECATED_INTERFACES
 
UINTN
EFIAPI
Sha1GetContextSize (
  VOID
  )
{
  //
  // Retrieves OpenSSL SHA Context Size
  //
  return (UINTN)(sizeof (SHA_CTX));
}
 
BOOLEAN
EFIAPI
Sha1Init (
  OUT  VOID  *Sha1Context
  )
{
  //
  // Check input parameters.
  //
  if (Sha1Context == NULL) {
    return FALSE;
  }
 
  //
  // OpenSSL SHA-1 Context Initialization
  //
  return (BOOLEAN)(SHA1_Init ((SHA_CTX *)Sha1Context));
}
 
BOOLEAN
EFIAPI
Sha1Duplicate (
  IN   CONST VOID  *Sha1Context,
  OUT  VOID        *NewSha1Context
  )
{
  //
  // Check input parameters.
  //
  if ((Sha1Context == NULL) || (NewSha1Context == NULL)) {
    return FALSE;
  }
 
  CopyMem (NewSha1Context, Sha1Context, sizeof (SHA_CTX));
 
  return TRUE;
}
 
BOOLEAN
EFIAPI
Sha1Update (
  IN OUT  VOID        *Sha1Context,
  IN      CONST VOID  *Data,
  IN      UINTN       DataSize
  )
{
  //
  // Check input parameters.
  //
  if (Sha1Context == NULL) {
    return FALSE;
  }
 
  //
  // Check invalid parameters, in case that only DataLength was checked in OpenSSL
  //
  if ((Data == NULL) && (DataSize != 0)) {
    return FALSE;
  }
 
  //
  // OpenSSL SHA-1 Hash Update
  //
  return (BOOLEAN)(SHA1_Update ((SHA_CTX *)Sha1Context, Data, DataSize));
}
 
BOOLEAN
EFIAPI
Sha1Final (
  IN OUT  VOID   *Sha1Context,
  OUT     UINT8  *HashValue
  )
{
  //
  // Check input parameters.
  //
  if ((Sha1Context == NULL) || (HashValue == NULL)) {
    return FALSE;
  }
 
  //
  // OpenSSL SHA-1 Hash Finalization
  //
  return (BOOLEAN)(SHA1_Final (HashValue, (SHA_CTX *)Sha1Context));
}
 
BOOLEAN
EFIAPI
Sha1HashAll (
  IN   CONST VOID  *Data,
  IN   UINTN       DataSize,
  OUT  UINT8       *HashValue
  )
{
  SHA_CTX  Context;
 
  //
  // Check input parameters.
  //
  if (HashValue == NULL) {
    return FALSE;
  }
 
  if ((Data == NULL) && (DataSize != 0)) {
    return FALSE;
  }
 
  //
  // OpenSSL SHA-1 Hash Computation.
  //
  if (!SHA1_Init (&Context)) {
    return FALSE;
  }
 
  if (!SHA1_Update (&Context, Data, DataSize)) {
    return FALSE;
  }
 
  if (!SHA1_Final (HashValue, &Context)) {
    return FALSE;
  }
 
  return TRUE;
}
 
#endif