60 lines
2.2 KiB
Diff
60 lines
2.2 KiB
Diff
--- a/attic/crypto.pyx
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+++ b/attic/crypto.pyx
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@@ -23,8 +23,9 @@ cdef extern from "openssl/evp.h":
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pass
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const EVP_MD *EVP_sha256()
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const EVP_CIPHER *EVP_aes_256_ctr()
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- void EVP_CIPHER_CTX_init(EVP_CIPHER_CTX *a)
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- void EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *a)
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+ EVP_CIPHER_CTX *EVP_CIPHER_CTX_new()
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+ const unsigned char *EVP_CIPHER_CTX_iv(const EVP_CIPHER_CTX *a)
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+ void EVP_CIPHER_CTX_free(EVP_CIPHER_CTX *a)
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int EVP_EncryptInit_ex(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *cipher, ENGINE *impl,
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const unsigned char *key, const unsigned char *iv)
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@@ -84,16 +85,16 @@ def get_random_bytes(n):
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cdef class AES:
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"""A thin wrapper around the OpenSSL EVP cipher API
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"""
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- cdef EVP_CIPHER_CTX ctx
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+ cdef EVP_CIPHER_CTX * ctx
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def __cinit__(self, key, iv=None):
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- EVP_CIPHER_CTX_init(&self.ctx)
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- if not EVP_EncryptInit_ex(&self.ctx, EVP_aes_256_ctr(), NULL, NULL, NULL):
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+ self.ctx = EVP_CIPHER_CTX_new();
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+ if not EVP_EncryptInit_ex(self.ctx, EVP_aes_256_ctr(), NULL, NULL, NULL):
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raise Exception('EVP_EncryptInit_ex failed')
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self.reset(key, iv)
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def __dealloc__(self):
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- EVP_CIPHER_CTX_cleanup(&self.ctx)
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+ EVP_CIPHER_CTX_free(self.ctx)
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def reset(self, key=None, iv=None):
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cdef const unsigned char *key2 = NULL
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@@ -102,12 +103,12 @@ cdef class AES:
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key2 = key
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if iv:
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iv2 = iv
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- if not EVP_EncryptInit_ex(&self.ctx, NULL, NULL, key2, iv2):
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+ if not EVP_EncryptInit_ex(self.ctx, NULL, NULL, key2, iv2):
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raise Exception('EVP_EncryptInit_ex failed')
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@property
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def iv(self):
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- return self.ctx.iv[:16]
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+ return EVP_CIPHER_CTX_iv(self.ctx)[:16]
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def encrypt(self, data):
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cdef int inl = len(data)
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@@ -116,7 +117,7 @@ cdef class AES:
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if not out:
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raise MemoryError
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try:
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- if not EVP_EncryptUpdate(&self.ctx, out, &outl, data, inl):
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+ if not EVP_EncryptUpdate(self.ctx, out, &outl, data, inl):
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raise Exception('EVP_EncryptUpdate failed')
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return out[:inl]
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finally:
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