keys 使用
RSA 密钥示例
生成 rsa 公钥及私钥,并使用公钥的 OAEP 填充模式加密,用私钥的 OAEP 填充模式解密
import crypto.keys.*
import crypto.digest.*
import std.io.*
import std.crypto.digest.*
main() {
var rsaPri = RSAPrivateKey(2048)
var rsaPub = RSAPublicKey(rsaPri)
var str: String = "hello world, hello cangjie"
var bas1 = ByteArrayStream()
var bas2 = ByteArrayStream()
var bas3 = ByteArrayStream()
bas1.write(str.toArray())
var encOpt = OAEPOption(SHA1(), SHA256())
rsaPub.encrypt(bas1, bas2, padType: OAEP(encOpt))
var encOpt2 = OAEPOption(SHA1(), SHA256())
rsaPri.decrypt(bas2, bas3, padType: OAEP(encOpt2))
var buf = Array<Byte>(str.size, item:0)
bas3.read(buf)
if (str.toArray() == buf){
println("success")
} else {
println("fail")
}
}
运行结果:
success
从文件中读取 rsa 公钥和私钥,并使用私钥的 PKCS1 填充模式签名,用公钥的 PKCS1 填充模式验证签名结果
说明: >
- 需要自行准备公私钥文件。
import crypto.keys.*
import crypto.digest.*
import std.crypto.digest.*
import std.fs.*
main() {
var pemPri = String.fromUtf8(File("./files/rsaPri.pem", OpenOption.Open(true, false)).readToEnd())
var rsaPri = RSAPrivateKey.decodeFromPem(pemPri)
var pemPub = String.fromUtf8(File("./files/rsaPub.pem", OpenOption.Open(true, false)).readToEnd())
var rsaPub = RSAPublicKey.decodeFromPem(pemPub)
var str: String = "helloworld"
var sha512Instance = SHA512()
var md: Array<Byte> = digest(sha512Instance, str)
var sig = rsaPri.sign(sha512Instance, md, padType: PKCS1)
if (rsaPub.verify(sha512Instance, md, sig, padType: PKCS1)){
println("verify successful")
}
}
运行结果:
verify successful
ECDSA 密钥示例
使用 ECDSA 密钥使用示例。
生成 ECDSA 公钥及私钥,并使用私钥签名,公钥验证签名结果
import crypto.keys.*
import crypto.digest.*
import std.convert.*
import std.crypto.digest.*
main() {
var ecPri = ECDSAPrivateKey(P224)
var ecPub = ECDSAPublicKey(ecPri)
var str: String = "helloworld"
var sha512Instance = SHA512()
var md: Array<Byte> = digest(sha512Instance, str)
var sig = ecPri.sign(md)
println(sig)
if (ecPub.verify(md, sig)){
println("verify successful")
}
}
运行结果:
verify successful
SM2 密钥示例
生成 SM2 公钥及私钥,并使用私钥签名,公钥验证签名结果
main(): Unit {
// 无参生成公钥私钥
let sm2PrivateKey = SM2PrivateKey()
let sm2PublicKey = SM2PublicKey(sm2PrivateKey)
//公钥和私钥导出
let priPem = sm2PrivateKey.encodeToPem()
let file1: File = File("./sm2Pri.pem", OpenOption.CreateOrTruncate(true))
file1.write(priPem.encode().toArray())
file1.close()
let pubPem = sm2PublicKey.encodeToPem()
let file2: File = File("./sm2Pub.pem", OpenOption.CreateOrTruncate(true))
file2.write(pubPem.encode().toArray())
file2.close()
//公钥加密 私钥解密
let str: String = "helloworld"
let encresult = sm2PublicKey.encrypt(str.toArray())
let decresult = sm2PrivateKey.decrypt(encresult)
println(String.fromUtf8(decresult))
//私钥签名 公钥验证
let strSig: String = "helloworld"
let sigRe = sm2PrivateKey.sign(strSig.toArray())
let verifyre = sm2PublicKey.verify(strSig.toArray(), sigRe)
println(verifyre)
// 私钥公钥导入
let pemPri = String.fromUtf8(File("./sm2Pri.pem", OpenOption.Open(true, false)).readToEnd())
let sm2PrivateKeyNew = SM2PrivateKey.decodeFromPem(pemPri)
let pemPub = String.fromUtf8(File("./sm2Pub.pem", OpenOption.Open(true, false)).readToEnd())
let sm2PublicKeyNew = SM2PublicKey.decodeFromPem(pemPub)
}
运行结果:
helloworld
true