Libraries |
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AES GCM | Source Code |
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Types | ||||
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aesGcmState
const type: aesGcmState
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cipherState implementation type describing the state of an AES GCM cipher. The data is encrypted / decrypted with the AES (Advanced encryption standard) cipher and Galois Counter Mode (GCM).
Function Summary | |||||
integer |
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aesGcmState |
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cipherState |
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void |
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string |
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string |
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string |
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string |
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Function Detail |
blockSize
const func integer: blockSize (AES_GCM)
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Block size used by the AES GCM cipher. AES is the Advanced Encryption Standard cipher. GCM is the Galois Counter Mode.
- Returns:
- the block size used by the AES GCM cipher.
setAesGcmKey
const func aesGcmState: setAesGcmKey (in string: aesKey, in string: initializationVector)
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Set key and initialization vector for the AES GCM cipher. AES is the Advanced Encryption Standard cipher. GCM is the Galois Counter Mode.
- Parameters:
- aesKey - The key to be used for AES GCM.
- initializationVector - The salt used to create the nonce.
- Returns:
- the AES GCM cipher state.
setCipherKey
const func cipherState: setCipherKey (AES_GCM, in string: cipherKey, in string: initializationVector)
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Set key and initialization vector for the AES GCM cipher. AES is the Advanced Encryption Standard cipher. GCM is the Galois Counter Mode.
- Parameters:
- cipherKey - The key to be used for AES GCM.
- initializationVector - The salt used to create the nonce.
- Returns:
- the initial cipherState of a AES GCM cipher.
initAead
const proc: initAead (inout aesGcmState: state, in string: recordTypeAndVersion, in integer: sequenceNumber)
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Initialize the authenticated encryption with associated data (AEAD). The AEAD authentication tag is computed in state.computedMac (MAC stands for message authentication code). The given parameters are used to initialize state.computedMac at the start of encryption or decryption.
getComputedMac
const func string: getComputedMac (in aesGcmState: state)
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Obtain the computed MAC of data that has been decrypted with the AES GCM cipher. After a successful decryption getComputedMac and getMac should return the same value.
getMac
const func string: getMac (in aesGcmState: state)
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Obtain the MAC that is appended to the encrypted data of the AES GCM cipher. After a successful decryption getComputedMac and getMac should return the same value.
encode
const func string: encode (inout aesGcmState: state, in string: plainText)
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Encode a string with the AES GCM cipher.
- Returns:
- the encoded string.
decode
const func string: decode (inout aesGcmState: state, in string: encoded)
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Decode a string with the AES GCM cipher.
- Returns:
- the decoded string.
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