Namespace aes
AES-256 encryption and associated modes
Defined in: aes.js.
| Constructor Attributes | Constructor Name and Description |
|---|---|
|
Implementation of AES on 256 bit keys. |
| Method Attributes | Method Name and Description |
|---|---|
| <private> <static> |
aes._aes(input, dir)
Internal AES block function.
|
| <private> <static> |
aes._blockGen(s, dir)
Block generator function, with PKCS#5 support for padding.
|
| <private> <static> |
aes._output(block, last)
Output processing.
|
| <static> |
aes.CBC(s, iv, dir)
CBC mode encryption and decryption using AES.
|
| <static> |
aes.CCM_decrypt(s, iv, adata, tlen)
Decryption in CCM mode.
|
| <static> |
aes.CCM_encrypt(s, iv, adata, tlen)
Authenticated encryption in CCM mode (provides ciphertext integrity).
|
| <static> |
aes.setKey(key)
Set the key to use for encryption and decryption.
|
Method Detail
<private> <static>
{number array[8]}
aes._aes(input, dir)
Internal AES block function.
- Parameters:
- {number array[4]} input
- array of four 32-bit words to process
- {boolean} dir
- false for encryption, true for decryption
- Returns:
- {number array[8]} result of the encryption
<private> <static>
{blocks:number|gen:()->number array[4]}
aes._blockGen(s, dir)
Block generator function, with PKCS#5 support for padding.
- Parameters:
- {string} s
- input string to process in blocks
- {boolean} dir
- false for encryption, true for decryption (no padding)
- Returns:
- {blocks:number|gen:()->number array[4]} A record containing the number of blocks and the block generating function
<private> <static>
{string}
aes._output(block, last)
Output processing. By default, returns an ASCII string.
- Parameters:
- {number array[4]} block
- internal block to output
- {boolean} last
- true if this is the last block, false otherwise
- Returns:
- {string} ASCII string representing the input block. Will unpad if this is the last block.
<static>
{string}
aes.CBC(s, iv, dir)
CBC mode encryption and decryption using AES.
- Parameters:
- {string} s
- input plaintext or ciphertext (ASCII string)
- {string} iv
- initial vector of the encryption, a 16 bytes ASCII string
- {boolean} dir
- false for encryption, true for encryption
- Returns:
- {string} result as an ASCII string
<static>
{valid:bolean|data:string}
aes.CCM_decrypt(s, iv, adata, tlen)
Decryption in CCM mode.
- Parameters:
- {string} s
- input ciphertext
- {string} iv
- random initialization vector (ASCII string)
- {string} adata
- Optional authenticated data (ASCII)
- {number} tlen
- tag length in bytes
- Returns:
- {valid:bolean|data:string} Object containing the decrypted data and authentication status
<static>
{string}
aes.CCM_encrypt(s, iv, adata, tlen)
Authenticated encryption in CCM mode (provides ciphertext integrity).
- Parameters:
- {string} s
- input plaintext (ASCII string)
- {string} iv
- Random initialization vector, 16 byte ASCII string
- {string} adata
- Optional authentication data (not secret but integrity protected)
- {number} tlen
- tag length in bytes (2 to 16) - high values make it harder to tamper with the ciphertext
- Returns:
- {string} the encrypted data, an ASCII string
<static>
aes.setKey(key)
Set the key to use for encryption and decryption.
- Parameters:
- {string} key
- ASCII key (32 bytes long)