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packet_crypt: Avoid setting keys every time

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Avoid setting keys on every packet decrypt or encrypt operation.

Signed-off-by: Alberto Aguirre <albaguirre@gmail.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Alberto Aguirre
2018-02-28 10:25:02 -06:00
committed by Andreas Schneider
parent 23accdde1a
commit 1ece5a849c
1 changed files with 0 additions and 13 deletions
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13
src/packet_crypt.c
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@@ -117,13 +117,6 @@ int ssh_packet_decrypt(ssh_session session,
return SSH_ERROR; return SSH_ERROR;
} }
rc = crypto->set_decrypt_key(crypto,
session->current_crypto->decryptkey,
session->current_crypto->decryptIV);
if (rc < 0) {
return -1;
}
if (crypto->aead_decrypt != NULL) { if (crypto->aead_decrypt != NULL) {
return crypto->aead_decrypt(crypto, return crypto->aead_decrypt(crypto,
source, source,
@@ -177,12 +170,6 @@ unsigned char *ssh_packet_encrypt(ssh_session session, void *data, uint32_t len)
hmac_update(ctx,data,len); hmac_update(ctx,data,len);
hmac_final(ctx,session->current_crypto->hmacbuf,&finallen); hmac_final(ctx,session->current_crypto->hmacbuf,&finallen);
if (crypto->set_encrypt_key(crypto, session->current_crypto->encryptkey,
session->current_crypto->encryptIV) < 0) {
SAFE_FREE(out);
return NULL;
}
#ifdef DEBUG_CRYPTO #ifdef DEBUG_CRYPTO
ssh_print_hexa("mac: ",data,hmac_digest_len(type)); ssh_print_hexa("mac: ",data,hmac_digest_len(type));
if (finallen != hmac_digest_len(type)) { if (finallen != hmac_digest_len(type)) {