sm2_encrypt_c1c2c3: SM2 Encrypt/Decrypt - c1c2c3

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

SM2 Encrypt/Decrypt - c1c2c3

Description

The result of SM2 asymmetric encryption consists of three parts: C1, C2, and C3. Among them, C1 is the elliptic curve point calculated based on a generated random number, C2 is the ciphertext data, and C3 is the digest value of SM3. Regarding the two modes of C1C2C3 and C1C3C2, the original Chinese national standard specified the order of C1C2C3, while the new standard follows the order of C1C3C2. These two different order modes are mainly designed to facilitate the parsing and processing of SM2 encryption results across different systems and environments.

Usage

sm2_encrypt_c1c2c3(data, public_key)

sm2_decrypt_c1c2c3(data, private_key)

Arguments

data	data to be encrypted or decrypted, must be a raw vector
public_key	a public key represented as a hexadecimal string
private_key	a private key represented as a hexadecimal string

Value

sm2_encrypt_c1c2c3

returns a raw vector of the cipher text in the order of c1c2c3

sm2_decrypt_c1c2c3

returns a raw vector of the plain text

Examples

## encrypt and decrypt as c1c2c3
keypair <- sm2_gen_keypair()
private_key <- keypair$private_key
public_key <- keypair$public_key
data <- 'abc' |> charToRaw()
enc <- sm2_encrypt_c1c2c3(data, public_key)
enc
dec <- sm2_decrypt_c1c2c3(enc, private_key)
dec

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