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crypto: support more hash algorithms for pbkdf

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Currently pbkdf is only supported with SHA1 and SHA256. Expand
this to support all algorithms known to QEMU.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrange 2016-09-07 13:12:28 +01:00
parent 2ab66cd577
commit 533008f4f3
3 changed files with 117 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

12
crypto/pbkdf-gcrypt.c
View file

@ -28,7 +28,11 @@ bool qcrypto_pbkdf2_supports(QCryptoHashAlgorithm hash)
switch (hash) {
case QCRYPTO_HASH_ALG_MD5:
case QCRYPTO_HASH_ALG_SHA1:
case QCRYPTO_HASH_ALG_SHA224:
case QCRYPTO_HASH_ALG_SHA256:
case QCRYPTO_HASH_ALG_SHA384:
case QCRYPTO_HASH_ALG_SHA512:
case QCRYPTO_HASH_ALG_RIPEMD160:
return true;
default:
return false;
@ -45,7 +49,11 @@ int qcrypto_pbkdf2(QCryptoHashAlgorithm hash,
static const int hash_map[QCRYPTO_HASH_ALG__MAX] = {
[QCRYPTO_HASH_ALG_MD5] = GCRY_MD_MD5,
[QCRYPTO_HASH_ALG_SHA1] = GCRY_MD_SHA1,
[QCRYPTO_HASH_ALG_SHA224] = GCRY_MD_SHA224,
[QCRYPTO_HASH_ALG_SHA256] = GCRY_MD_SHA256,
[QCRYPTO_HASH_ALG_SHA384] = GCRY_MD_SHA384,
[QCRYPTO_HASH_ALG_SHA512] = GCRY_MD_SHA512,
[QCRYPTO_HASH_ALG_RIPEMD160] = GCRY_MD_RMD160,
};
int ret;
@ -58,7 +66,9 @@ int qcrypto_pbkdf2(QCryptoHashAlgorithm hash,
if (hash >= G_N_ELEMENTS(hash_map) ||
hash_map[hash] == GCRY_MD_NONE) {
error_setg(errp, "Unexpected hash algorithm %d", hash);
error_setg_errno(errp, ENOSYS,
"PBKDF does not support hash algorithm %s",
QCryptoHashAlgorithm_lookup[hash]);
return -1;
}