With EVP/AES I cannot change encrypt/decrypt after setting KEY bool ok = EVP_CipherInit_ex( &ctx, type, impl, key, iv, enc );
I am calling EVP_CipherInit_ex() more than once. I set the key early then later set enc (or change it after a default CTOR). The DOCS says simply leave things NULL for them to be unchanged. This worked fine for a range of ciphers, but not AES. The source file .../crypto/evp/e_aes.c shows different functions which presumably do slightly different things (it drops into asm) and would need to be redone, if changing mode. ret=AES_set_encrypt_key(key, ctx->key_len * 8, ctx->cipher_data); ret=AES_set_decrypt_key(key, ctx->key_len * 8, ctx->cipher_data); THEN setting enc before setting the key stopped it failing. Cannot change encrypt-flag to decrypt-mode without setting KEY again. Graham ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager majord...@openssl.org
