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Unbreak AES-CTR ciphers on old (~0.9.8) OpenSSL 

ok dtucker@
This commit is contained in:
Damien Miller 2016-10-28 14:34:07 +11:00
parent a9ff3950b8
commit 315d2a4e67
1 changed files with 7 additions and 1 deletions
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8
cipher.c
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@ -617,7 +617,7 @@ cipher_get_keyiv(struct sshcipher_ctx *cc, u_char *iv, u_int len)
return SSH_ERR_INVALID_ARGUMENT;
#ifndef OPENSSL_HAVE_EVPCTR
if (c->evptype == evp_aes_128_ctr)
ssh_aes_ctr_iv(&cc->evp, 0, iv, len);
ssh_aes_ctr_iv(cc->evp, 0, iv, len);
else
#endif
if (cipher_authlen(c)) {
@ -659,6 +659,12 @@ cipher_set_keyiv(struct sshcipher_ctx *cc, const u_char *iv)
evplen = EVP_CIPHER_CTX_iv_length(cc->evp);
if (evplen <= 0)
return SSH_ERR_LIBCRYPTO_ERROR;
#ifndef OPENSSL_HAVE_EVPCTR
/* XXX iv arg is const, but ssh_aes_ctr_iv isn't */
if (c->evptype == evp_aes_128_ctr)
ssh_aes_ctr_iv(cc->evp, 1, (u_char *)iv, evplen);
else
#endif
if (cipher_authlen(c)) {
/* XXX iv arg is const, but EVP_CIPHER_CTX_ctrl isn't */
if (!EVP_CIPHER_CTX_ctrl(cc->evp,