CryptoJS extension

AES-CMAC and AES-SIV in JavaScript in the Browser

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Online AES-CMAC calculator

AES-CMAC is an algorithm to calculate a message authentication code which is based on AES

Message: Hex encoded ²

Key ¹: Hex encoded ²

Result (Hex encoded):

Online AES-SIV calculator

AES-SIV is a mode of operation for authenticated encryption with additional data (AEAD) with AES as the base encryption primitive

Input (Plaintext / Ciphertext): Hex encoded ²

Key ³: Hex encoded ²

add associated data

Result (Hex encoded):

Online AES-EAX calculator

AES-EAX is a mode of operation for authenticated encryption with additional data (AEAD) based on AES as the base encryption primitive and AES-CMAC

Input (Plaintext / Ciphertext): Hex encoded ²

Key ¹: Hex encoded ²

Nonce: Hex encoded ²

add associated data

Result (Hex encoded):

¹ The key can be 128-bit, 192-bit or 256-bit long. If the key is shorter, then it is automatically padded up to the next valid size using 0x00 bytes.

² If the box is not checked it will be assumed that the data is a UTF-8 string.

³ The key can be 256-bit, 384-bit or 512-bit long. It's split into two equal-sized chunks. The first half is used for the authentication tag and the second half for encryption.