public void Decrypt_throws_on_mismatching_mac()
{
var key = "SLBgfXoityZsz4ZWvpEPULPZMYGH6vSqh3PXTe5DmyM=".Decode64();
var iv = "XZ2vMa5oFCcp7BUAfPowvA==".Decode64();
var ciphertext = "1/GDPwJWo+2Iacio0UkRfR0zXXUufGjMIxD+y/A/YfQPKKep69B0nfbueqZJ1nA1pv15qVounBVJLhetVMGW7mKSxdVtTYObe0Uiqm/C9/s=".Decode64();
var mac = "mismatching MAC, mismatching MAC".ToBytes();
var cs = new CipherString(mode: CipherMode.Aes256CbcHmacSha256, iv: iv, ciphertext: ciphertext, mac: mac);
Exceptions.AssertThrowsCrypto(() => cs.Decrypt(key), "MAC doesn't match");
}
public void Decrypt_decrypts_ciphertext_without_mac()
{
var cs = new CipherString(mode: CipherMode.Aes256Cbc,
iv: "YFuiAVZgOD2K+s6y8yaMOw==".Decode64(),
ciphertext: "TZ1+if9ofqRKTatyUaOnfudletslMJ/RZyUwJuR/+aI=".Decode64(),
mac: "".ToBytes());
var plaintext = cs.Decrypt("OfOUvVnQzB4v49sNh4+PdwIFb9Fr5+jVfWRTf+E2Ghg=".Decode64());
Assert.Equal("All your base are belong to us".ToBytes(), plaintext);
}
public void Decrypt_decrypts_ciphertext_with_expanded_key()
{
var key = "SLBgfXoityZsz4ZWvpEPULPZMYGH6vSqh3PXTe5DmyM=".Decode64();
var iv = "XZ2vMa5oFCcp7BUAfPowvA==".Decode64();
var ciphertext = "1/GDPwJWo+2Iacio0UkRfR0zXXUufGjMIxD+y/A/YfQPKKep69B0nfbueqZJ1nA1pv15qVounBVJLhetVMGW7mKSxdVtTYObe0Uiqm/C9/s=".Decode64();
var mac = "ZLZcTYFq4o1tBSYkGUbQEIj64/rAE8sAVmfzpOhPTNM=".Decode64();
var expected = "7Zo+OWHAKzu+Ovxisz38Na4en13SnoKHPxFngLUgLiHzSZCWbq42Mohdr6wInwcsWbbezoVaS2vwZlSlB6G7Mg==".Decode64();
var cs = new CipherString(mode: CipherMode.Aes256CbcHmacSha256, iv: iv, ciphertext: ciphertext, mac: mac);
var plaintext = cs.Decrypt(key);
Assert.Equal(expected, plaintext);
}
