@sec-block/secjs-crypto
v1.0.7
Published
generate private key ande public key for encryption, decryption and sign, verify
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secCrypto
using EC crypto generate privat key and public key it also can be used for user authentication class secCrypto could encrypt and decrypt message
Kind: global class
Example
const secCrypto = require('../secCrypto_lib')
let TestSecCrypto = new SecCrypto()
secCrypto.generateCryptoPrivKey()
Kind: instance method of secCrypto
Example
let privateKey = TestSecCrypto.getCryptoPrivKey()
secCrypto.generateCryptoPubKey()
Corresponding uncompressed (65-byte) public key.
Kind: instance method of secCrypto
let publicKey = TestSecCrypt.getCryptoPubKey()
secCrypto.secSign(privateKey, str, callback)
Kind: instance method of secCrypto
| Param | Type | Description | | --- | --- | --- | | privateKey | Buffer | using private key signature message | | str | string | input private key and message by string | | callback | Buffer | message will be translated and saved in buffer |
secCrypto.secVerify(publicKey, sig)
sig is from secSign() cipher verify user privat key and identity
Kind: instance method of secCrypto
| Param | Type | Description | | --- | --- | --- | | publicKey | Buffer | input public key and using public key decryption signature | | sig | Buffer | decrypt signature and verify identify | Example
TestSecCrypto.secSign(privateKey,str,(sig)=>{
console.log('Signature in DER format:', sig)
TestSecCrypto.secVerify(publicKey,sig)
})
secCrypto.secEncrypt(publicKey, cryptoMsg, callback)
user decrypting the message with privat key.
Kind: instance method of secCrypto
| Param | Type | Description | | --- | --- | --- | | publicKey | Buffer | input public key and use public key encrypt message | | cryptoMsg | string | input message | | callback | Buffer | callback cipher |
secCrypto.secDecrypt(privateKey, encrypted, callback)
using private key decrypt cipher
Kind: instance method of secCrypto
| Param | Type | Description | | --- | --- | --- | | privateKey | Buffer | input private key and use private key decrypt cipher | | encrypted | Buffer | input cipher | | callback | string | callback plaintext | Example
let text = 'Hello World'
TestSecCrypto.secEncrypt(publicKey,text,(cipher)=>{
console.log('cipher:',cipher)
TestSecCrypto.secDecrypt(privateKey,cipher,(plaintext)=>{
console.log('Plaintext:', plaintext)
let strPlaintext = plaintext.toString()
console.log('Plaintext to String:', strPlaintext)
})
})
secCrypto.getCryptoPrivKey()
return private key
Kind: instance method of secCrypto
secCrypto.getCryptoPubKey()
return public key
Kind: instance method of secCrypto