257     const EVP_CIPHER* cipher;  in InitializeCipher()  local
262             cipher = EVP_aes_128_ecb();  in InitializeCipher()
265             cipher = EVP_aes_192_ecb();  in InitializeCipher()
268             cipher = EVP_aes_256_ecb();  in InitializeCipher()
277             cipher = EVP_aes_128_cbc();  in InitializeCipher()
280             cipher = EVP_aes_192_cbc();  in InitializeCipher()
283             cipher = EVP_aes_256_cbc();  in InitializeCipher()
292             cipher = EVP_aes_128_ctr();  in InitializeCipher()
295             cipher = EVP_aes_192_ctr();  in InitializeCipher()
298             cipher = EVP_aes_256_ctr();  in InitializeCipher()
307             cipher = EVP_aes_128_gcm();  in InitializeCipher()
310             cipher = EVP_aes_192_gcm();  in InitializeCipher()
313             cipher = EVP_aes_256_gcm();  in InitializeCipher()
323     if (!EVP_CipherInit_ex(&ctx_, cipher, NULL /* engine */, key_, iv_.get(), evp_encrypt_mode()))  in InitializeCipher()