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hmac_sha256: replace own cython wrapper code by hmac.digest python stdlib (since py38)

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i measured performance of both: pretty much the same.
This commit is contained in:
Thomas Waldmann 2022-03-05 21:22:24 +01:00
parent e37a55c5eb
commit 8317698f9b
1 changed files with 1 additions and 12 deletions
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13
src/borg/crypto/low_level.pyx
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@ -754,18 +754,7 @@ cdef class AES:
def hmac_sha256(key, data):
cdef Py_buffer data_buf = ro_buffer(data)
cdef const unsigned char *key_ptr = key
cdef int key_len = len(key)
cdef unsigned char md[32]
try:
with nogil:
rc = HMAC(EVP_sha256(), key_ptr, key_len, <const unsigned char*> data_buf.buf, data_buf.len, md, NULL)
if rc != md:
raise CryptoError('HMAC(EVP_sha256) failed')
finally:
PyBuffer_Release(&data_buf)
return PyBytes_FromStringAndSize(<char*> &md[0], 32)
return hmac.digest(key, data, 'sha256')
def blake2b_256(key, data):