素材网站上的元素是怎么做的,做 个收废品网站,做游戏视频网站要批证吗,代理主要干什么RSA算法广泛应用与数据加密#xff08;比如 SSL 传输层加密#xff09;#xff0c;数字签名#xff08;比如支付宝的支付签名#xff09;。
1、加密解密
// encrypts the given message with RSA-OAEP
func f1() {// random 用来生成随机的素数rsaPriviteKey, err : rsa…RSA算法广泛应用与数据加密比如 SSL 传输层加密数字签名比如支付宝的支付签名。
1、加密解密
// encrypts the given message with RSA-OAEP
func f1() {// random 用来生成随机的素数rsaPriviteKey, err : rsa.GenerateKey(rand.Reader, 1024)if err ! nil {log.Fatal(err)}str : raoxiaoyaencdata, err : rsa.EncryptOAEP(sha256.New(), rand.Reader, rsaPriviteKey.PublicKey, []byte(str), nil)if err ! nil {log.Fatal(err)}log.Println(hex.EncodeToString(encdata))decdata, err : rsa.DecryptOAEP(sha256.New(), nil, rsaPriviteKey, encdata, nil)if err ! nil {log.Fatal(err)}log.Println(string(decdata))// 通用的 Decode 方法decdata2, err2 : rsaPriviteKey.Decrypt(rand.Reader, encdata, rsa.OAEPOptions{Hash: crypto.SHA256, Label: nil})if err2 ! nil {log.Fatal(err2)}log.Println(string(decdata2))
}// encrypts the given message with RSA and the padding scheme from PKCS #1 v1.5
func f2() {rsaPriviteKey, err : rsa.GenerateKey(rand.Reader, 1024)if err ! nil {log.Fatal(err)}str : raoxiaoyaencdata, err : rsa.EncryptPKCS1v15(rand.Reader, rsaPriviteKey.PublicKey, []byte(str))if err ! nil {log.Fatal(err)}log.Println(hex.EncodeToString(encdata))decdata, err : rsa.DecryptPKCS1v15(nil, rsaPriviteKey, encdata)if err ! nil {log.Fatal(err)}log.Println(string(decdata))// 通用的 Decode 方法decdata2, err2 : rsaPriviteKey.Decrypt(rand.Reader, encdata, nil)if err2 ! nil {log.Fatal(err2)}log.Println(string(decdata2))
}2、数字签名
func f3() {rsaPriviteKey, err : rsa.GenerateKey(rand.Reader, 1024)if err ! nil {log.Fatal(err)}str : []byte(raoxiaoya)// 由于 rsa 算法比较慢所以先使用哈希算法来缩短加密的数据hashed : sha256.Sum256(str)// random 参数是预留问题可以设置为nil// 使用私钥来签名signature, err : rsa.SignPKCS1v15(nil, rsaPriviteKey, crypto.SHA256, hashed[:])if err ! nil {log.Fatal(err)}log.Println(hex.EncodeToString(signature))// 使用公钥来验证签名err rsa.VerifyPKCS1v15(rsaPriviteKey.PublicKey, crypto.SHA256, hashed[:], signature)log.Fatal(err)
}3、将RSA密钥导出到PEM文件
func f4() {rsaPriviteKey, err : rsa.GenerateKey(rand.Reader, 1024)if err ! nil {log.Fatal(err)}pri : x509.MarshalPKCS1PrivateKey(rsaPriviteKey)block : pem.Block{Type: RSA PRIVATE KEY,Bytes: pri,}file, err : os.Create(private.pem)if err ! nil {log.Fatal(err)}err pem.Encode(file, block)if err ! nil {log.Fatal(err)}pub : x509.MarshalPKCS1PublicKey(rsaPriviteKey.PublicKey)block2 : pem.Block{Type: PUBLIC KEY,Bytes: pub,}file2, err2 : os.Create(public.pem)if err2 ! nil {log.Fatal(err2)}err2 pem.Encode(file2, block2)if err2 ! nil {log.Fatal(err2)}
}文件内容如下
-----BEGIN RSA PRIVATE KEY-----
MIICXgIBAAKBgQDFgklwSCKCIdoMoPbRrS/kYAlHfbq6SyjBx6rvQ8muGEBttn
SwQQEsPRGyIfe/bN/E0lh1iONqhO3z1qiQoOGc1mAlq3/So8dXOx3HWTGyhbvKZi
O/suGsjAx/OIrmeaHuypMK5uY2TXx0CI2a4h3JyQ/X9WzfCZRs3uZhAb6wIDAQAB
AoGBAKSTQMBnyyFmNbxKMABdcEe64mCI2pw63nZCM5U1DzfzcRmtmUVcE8GU8Uf/
dPqJIAlaD6qS0e6Gis5V5GYuVIoejjruEZDVLB/VULg3hqFrwHmjCxZ8tevQxAXf
nFMO0pycmLB4MIh2PlupSdN7QACAnFY/DQatiV7xjfHzll0hAkEA5ghQrDDEqLfn
fau5rK5K3Gi8W8zGMizWUnlxJMKrJycTcoYnDUFCb/W2Q39WTvEFNBSfSIzg3
iFqGXiEU0QJBANvOE7ySosZTGLoHptdueH3MMqN351QZ8okyCWwf9kQS1sI8dBl9
4BrTAccR7YfxQuzk0CK5QJPcqLRhvEPOQ/sCQQDYcgaGnzTMlI7LnyQMqctmMcfC
aaJZVJ7QqVfBPMRSgKpSgVYMmqHTfIZWlkxZKOoRcGVEk0WOrV2Jce9FlhAkEA
ryobmQVCd2A0Ad3AymLJh0Loc/U7uW6rXDNp3gVJgypTqMklogEhvvu57i2xWYT
wntaDsH435yyaQWWJacD7wJAQ8ShSWEWThuSOgRh9j/UpFzXi5MKolQdnWefYCd
2QZRir4eF27Y0TaRr4YvDSddmHWyGa0Uy2xcWooSSUQSQ
-----END RSA PRIVATE KEY----------BEGIN PUBLIC KEY-----
MIGJAoGBAMWCSXBIIoIh2gyg9tGtLRgCUd9urpLKMHH7qu9Dya4YQG236dLBBAS
w9EbIh979s38TSWHWI42qE7fPWqJCg4ZzWYCWrf9Kjx1c7HcdZMbKFu8pmI7y4a
yMDH84iuZ5oe7Kkwrm5jZNfHQIjZriHcnJD9f1bN8JlGze5mEBvrAgMBAAE
-----END PUBLIC KEY-----
4、加载现有的RSA密钥文件进行加密解密
func f5() {// load public.pempf, err : os.Open(public.pem)if err ! nil {log.Fatal(err)}pfc, err : io.ReadAll(pf)if err ! nil {log.Fatal(err)}block, _ : pem.Decode(pfc)if block nil {log.Fatal(pem decode fail.)}rsaPublicKey, err : x509.ParsePKCS1PublicKey(block.Bytes)if err ! nil {log.Fatal(err)}// load private.pempvf, err : os.Open(private.pem)if err ! nil {log.Fatal(err)}pvfc, err : io.ReadAll(pvf)if err ! nil {log.Fatal(err)}blockv, _ : pem.Decode(pvfc)if block nil {log.Fatal(pem decode fail.)}rsaPrivateKey, err : x509.ParsePKCS1PrivateKey(blockv.Bytes)if err ! nil {log.Fatal(err)}// teststr : raoxiaoyaencdata, err : rsa.EncryptPKCS1v15(rand.Reader, rsaPublicKey, []byte(str))if err ! nil {log.Fatal(err)}log.Println(hex.EncodeToString(encdata))decdata, err : rsa.DecryptPKCS1v15(nil, rsaPrivateKey, encdata)if err ! nil {log.Fatal(err)}log.Println(string(decdata))
}5、使用openssl程序生成RSA公钥密钥
openssl genrsa -out rsa_private_key.pem 1024openssl rsa -in rsa_private_key.pem -pubout -out rsa_public_key.pem
