Namespace: gcm

sjcl.mode.gcm

Galois/Counter mode.
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Members

(static, constant) name

The name of the mode.
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Methods

(static) _ctrMode(encrypt, prf, data, iv, adata, tlen)

GCM CTR mode. Encrypt or decrypt data and tag with the prf in GCM-style CTR mode.
Parameters:
Name Type Description
encrypt Boolean True if encrypt, false if decrypt.
prf Object The PRF.
data bitArray The data to be encrypted or decrypted.
iv bitArray The initialization vector.
adata bitArray The associated data to be tagged.
tlen Number The length of the tag, in bits.
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(static) decrypt(prf, ciphertext, iv, adataopt, tlenopt) → {bitArray}

Decrypt in GCM mode.
Parameters:
Name Type Attributes Default Description
prf Object The pseudorandom function. It must have a block size of 16 bytes.
ciphertext bitArray The ciphertext data.
iv bitArray The initialization value.
adata bitArray <optional>
 [] The authenticated data.
tlen Number <optional>
 128 The desired tag length, in bits.
Source:
Returns:
The decrypted data.
Type
bitArray

(static) encrypt(prf, plaintext, iv, adataopt, tlenopt) → {bitArray}

Encrypt in GCM mode.
Parameters:
Name Type Attributes Default Description
prf Object The pseudorandom function. It must have a block size of 16 bytes.
plaintext bitArray The plaintext data.
iv bitArray The initialization value.
adata bitArray <optional>
 [] The authenticated data.
tlen Number <optional>
 128 The desired tag length, in bits.
Source:
Returns:
The encrypted data, an array of bytes.
Type
bitArray