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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

• secCrypto
  • .generateCryptoPrivKey()
  • .generateCryptoPubKey()
  • .secSign(privateKey, str, callback)
  • .secVerify(publicKey, sig)
  • .secEncrypt(publicKey, cryptoMsg, callback)
  • .secDecrypt(privateKey, encrypted, callback)
  • .getCryptoPrivKey()
  • .getCryptoPubKey()

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