SM4)

sm2_gen_keypair

R Documentation

SM2 Key Pair

Description

In the SM2 encryption algorithm, the private key and public key appear in pairs. The private key is a 64-bit hexadecimal string, and the public key is a 128-bit hexadecimal string, excluding the "04" prefix at the beginning. The public key is included in the private key and can be derived from the private key. We use the public key for encryption, the private key for decryption, the private key for signing, and the public key for verification.

Usage

sm2_gen_keypair()

sm2_pk_from_sk(private_key)

sm2_privkey_valid(private_key)

sm2_pubkey_valid(public_key)

sm2_keypair_from_pem_file(pem_file)

sm2_keypair_to_pem_file(private_key, pem_file)

sm2_pubkey_from_pem_file(pem_file)

sm2_pubkey_to_pem_file(public_key, pem_file)

Arguments

`private_key`	a private key represented as a hexadecimal string
`public_key`	a public key represented as a hexadecimal string
`pem_file`	local pem file path

Details

sm2_gen_keypair: generate a ramdom key pair
sm2_pk_from_sk: export public key from a private key
sm2_privkey_valid: check whether a private key is legal
sm2_pubkey_valid: check whether a public key is legal
sm2_keypair_from_pem_file: import private key from a local pem file
sm2_keypair_to_pem_file: save a private key to a local pem file
sm2_pubkey_from_pem_file: import public key from a local pem file
sm2_pubkey_to_pem_file: save a public key to a local pem file

Value

sm2_gen_keypair: returns a list contains a random private key and the corresponding public key
sm2_pk_from_sk: returns a character string, the public key exported from a private key
sm2_privkey_valid: returns 1 if valid, 0 if invalid
sm2_pubkey_valid: returns 1 if valid, 0 if invalid
sm2_keypair_from_pem_file: returns a list contains a random private key and the corresponding public key
sm2_keypair_to_pem_file: returns nothing, and a local file contains the keypair will be saved in the specified path
sm2_pubkey_from_pem_file: returns a character string, the public key saved in the local file
sm2_pubkey_to_pem_file: returns nothing, and a local file contains the public key will be saved in the specified path

Examples

## generate a ramdom keypair
keypair <- sm2_gen_keypair()
keypair$private_key
keypair$public_key
## export public key from private key
sm2_pk_from_sk(keypair$private_key)
## check whether the private key is legal
sm2_privkey_valid(keypair$private_key)
## check whether the public key is legal
sm2_pubkey_valid(keypair$public_key)
## Not run: 
  sm2_keypair_to_pem_file(keypair, 'keypair.pem')
  sm2_keypair_from_pem_file('keypair.pem')
  sm2_pubkey_to_pem_file(keypair$public_key, 'pubkey.pem')
  sm2_pubkey_from_pem_file('pubkey.pem')

## End(Not run)

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