smcryptoR (version 0.1.2)

sm2_gen_keypair: 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)

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

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

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$public_key)
if (FALSE) {
  sm2_keypair_to_pem_file(keypair, 'keypair.pem')
  sm2_keypair_from_pem_file('keypair.pem')
  sm2_pubkey_to_pem_file(keypair$public_key, 'pubkey.pem')
  sm2_pubkey_from_pem_file('pubkey.pem')
}