DES (hudes.h)

DES functions.

Security Builder API supports three variations of DES: DES, Triple-DES and DESX.

A DES parameters object, key object and operating context are required to perform the DES algorithm. An RNG context is required if key generation will be performed.

The following constants are defined in hudes.h The variations of DES algorithms are indicated by:

  • SB_DES_DES
  • SB_DES_TDES
  • SB_DES_DESX
The mode of operation is indicated by:
  • SB_DES_ECB
  • SB_DES_CBC
  • SB_DES_CFB64
  • SB_DES_OFB64
The flag values for the use of the parity bit are:
  • SB_DES_PARITY_OFF
  • SB_DES_PARITY_ON
The flag values for weak key detection and prevention are:
  • SB_DES_WEAK_KEY_OFF
  • SB_DES_WEAK_KEY_ON
The size constants are:
  • SB_DES_BLOCK_SIZE
  • SB_DES_KEY_SIZE
  • SB_DES_IV_SIZE

Related links

  • hu_DESParamsCreate()

    Creates a DES parameters object.

  • hu_DESParamsGet()

    Retrieves settings from a DES parameters object.

  • hu_DESParamsDestroy()

    Destroys an DES parameters object.

  • hu_DESKeySet()

    Creates an DES key object from the given key value(s) that can later be used for encryption and/or decryption.

  • hu_DESKeyGen()

    Creates an DES key object of the specified length from random data that can later be used for encryption and/or decryption.

  • hu_DESKeyGet()

    Retrieves the key values and their lengths from an DES key object.

  • hu_DESKeyDestroy()

    Destroys a DES key object.

  • hu_DESBegin()

    Creates an DES context initialized with the given parameters and key that can later be used for encryption and/or decryption.

  • hu_DESBeginV2()

    Creates an DES context initialized with the given parameters, with the ability to override the mode in the parameters, and a key that can later be used for encryption and/or decryption.

  • hu_DESEncrypt()

    Encrypts one or more blocks of plaintext using the given DES context.

  • hu_DESDecrypt()

    Decrypts one or more blocks of ciphertext using the given DES context.

  • hu_DESCtxReset()

    Resets the given DES context so it can be reused.

  • hu_DESEnd()

    Destroys an DES context object.

  • hu_DESEncryptMsg()

    Encrypts a plaintext buffer using the given DES parameters and key.

  • hu_DESDecryptMsg()

    Decrypts a ciphertext buffer using the given DES parameters and key.