CryptSha256.c

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#include "InternalCryptLib.h"
#include <mbedtls/sha256.h>
 
UINTN
EFIAPI
Sha256GetContextSize (
  VOID
  )
{
  return (UINTN)(sizeof (mbedtls_sha256_context));
}
 
BOOLEAN
EFIAPI
Sha256Init (
  OUT  VOID  *Sha256Context
  )
{
  INT32  Ret;
 
  if (Sha256Context == NULL) {
    return FALSE;
  }
 
  mbedtls_sha256_init (Sha256Context);
 
  Ret = mbedtls_sha256_starts (Sha256Context, FALSE);
  if (Ret != 0) {
    return FALSE;
  }
 
  return TRUE;
}
 
BOOLEAN
EFIAPI
Sha256Duplicate (
  IN   CONST VOID  *Sha256Context,
  OUT  VOID        *NewSha256Context
  )
{
  if ((Sha256Context == NULL) || (NewSha256Context == NULL)) {
    return FALSE;
  }
 
  mbedtls_sha256_clone (NewSha256Context, Sha256Context);
 
  return TRUE;
}
 
BOOLEAN
EFIAPI
Sha256Update (
  IN OUT  VOID        *Sha256Context,
  IN      CONST VOID  *Data,
  IN      UINTN       DataSize
  )
{
  INT32  Ret;
 
  if (Sha256Context == NULL) {
    return FALSE;
  }
 
  if ((Data == NULL) && (DataSize != 0)) {
    return FALSE;
  }
 
  Ret = mbedtls_sha256_update (Sha256Context, Data, DataSize);
  if (Ret != 0) {
    return FALSE;
  }
 
  return TRUE;
}
 
BOOLEAN
EFIAPI
Sha256Final (
  IN OUT  VOID   *Sha256Context,
  OUT     UINT8  *HashValue
  )
{
  INT32  Ret;
 
  if ((Sha256Context == NULL) || (HashValue == NULL)) {
    return FALSE;
  }
 
  Ret = mbedtls_sha256_finish (Sha256Context, HashValue);
  mbedtls_sha256_free (Sha256Context);
  if (Ret != 0) {
    return FALSE;
  }
 
  return TRUE;
}
 
BOOLEAN
EFIAPI
Sha256HashAll (
  IN   CONST VOID  *Data,
  IN   UINTN       DataSize,
  OUT  UINT8       *HashValue
  )
{
  INT32  Ret;
 
  if (HashValue == NULL) {
    return FALSE;
  }
 
  if ((Data == NULL) && (DataSize != 0)) {
    return FALSE;
  }
 
  Ret = mbedtls_sha256 (Data, DataSize, HashValue, FALSE);
  if (Ret != 0) {
    return FALSE;
  }
 
  return TRUE;
}