Questions tagged [aes-gcm]

Galois/Counter mode of the Advanced Encryption Standard: A mode of operation of the AES block cipher which both encrypts and authenticates its input data.

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Unable to set IV for aes gcm using openssl

I am trying to use AES GCM encryption mechanism provided by OpenSSL in C++ and using example on this link as reference: https://wiki.openssl.org/index.php/EVP_Authenticated_Encryption_and_Decryption However, following statement gives me error: /*…
Riddhi Rathod
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PyCryptodome decrypt_and_verify is returning "ValueError: MAC check failed"

I have this Java code byte[] decoded= Base64.getDecoder().decode(str.getBytes(StandardCharsets.UTF_8)); byte[] copyfrom12= Arrays.copyOfRange(decoded, 0, Integer.parseInt("12")); SecretKeySpec secretkeyspec= new…
hanan
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Verify an AES-256-GCM implementation with another tool

I need to verify the correctness of a tool, that follows the FIPS-197 standard. So I will receive a triple and I want to decode this triple (key, cypher, IV). Is there a way to do this simply? Is there any online-implementation, that could be…
Shalec
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