sm4_encrypt_file: SM4 Encrypt/Decrypt - file

In smcryptoR: ShangMi(SM) Cryptographic Algorithms(SM2/SM3/SM4)

SM4 Encrypt/Decrypt - file

Description

For ease of use, we have provided functions to encrypt or decrypt data directly from files.

Usage

sm4_encrypt_ecb_to_file(input_file, output_file, key)

sm4_decrypt_ecb_from_file(input_file, output_file, key)

sm4_encrypt_cbc_to_file(input_file, output_file, key, iv)

sm4_decrypt_cbc_from_file(input_file, output_file, key, iv)

Arguments

input_file	the original file for encrypt, or the encrypted file for decrypt
output_file	the encrypted file for encrypt, or the decrypted file for decrypt
key	the key, must be a raw vector of length 16
iv	the initialization vector, must be a raw vector of 16

Value

sm4_encrypt_ecb_to_file

returns nothing, and an encrypted file will be saved in the specified path using ecb mode

sm4_decrypt_ecb_from_file

returns nothing, and a decrypted file will be saved in the specified path using ecb mode

sm4_encrypt_cbc_to_file

returns nothing, and an encrypted file will be saved in the specified path using cbc mode

sm4_decrypt_cbc_from_file

returns nothing, and a decrypted file will be saved in the specified path using cbc mode

Examples

## Not run: 
  key <- '1234567812345678' |> charToRaw()
  iv <- '0000000000000000' |> charToRaw()
  ## ecb mode
  sm4_encrypt_ecb_to_file('a.txt', 'a.enc', key)
  sm4_decrypt_ecb_from_file('a.enc', 'a.dec', key)
  ## cbc mode
  sm4_encrypt_cbc_to_file('a.txt', 'a.enc', key, iv)
  sm4_decrypt_cbc_from_file('a.enc', 'a.dec', key, iv)

## End(Not run)

smcryptoR documentation built on June 22, 2024, 11:46 a.m.