https://github.com/sniper365/golang-crypto-package
GoLang Crypto operations - AES, HMAC, Checksum and RSA Encrypt Decrypt
https://github.com/sniper365/golang-crypto-package
aes-encryption crypto go hash rsa-encryption-decryption
Last synced: 5 months ago
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GoLang Crypto operations - AES, HMAC, Checksum and RSA Encrypt Decrypt
- Host: GitHub
- URL: https://github.com/sniper365/golang-crypto-package
- Owner: sniper365
- License: unlicense
- Created: 2021-06-05T21:35:58.000Z (almost 5 years ago)
- Default Branch: master
- Last Pushed: 2021-08-06T21:10:08.000Z (almost 5 years ago)
- Last Synced: 2024-06-20T01:53:20.351Z (almost 2 years ago)
- Topics: aes-encryption, crypto, go, hash, rsa-encryption-decryption
- Language: Go
- Homepage:
- Size: 20.5 KB
- Stars: 4
- Watchers: 2
- Forks: 2
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# crypto
A base crypto package for GoLang. Provides easy crypto operations for - AES, HMAC, Checksum and RSA Encrypt Decrypt
[](https://goreportcard.com/report/github.com/sniper365/golang-crypto-package)
```
go get -u github.com/sniper365/golang-crypto-package
```
### Tests
```
go test -v
=== RUN TestAesEncryptDecrypt
--- PASS: TestAesEncryptDecrypt (0.00s)
=== RUN TestRsaEncryptDecrypt
--- PASS: TestRsaEncryptDecrypt (0.00s)
=== RUN TestHmac
--- PASS: TestHmac (0.00s)
=== RUN TestChecksum
--- PASS: TestChecksum (0.00s)
PASS
ok crypto/crypto 0.029s
```
### Benchmarks
```
go test -bench=.
goos: darwin
goarch: amd64
pkg: github.com/sniper365/golang-crypto-package
BenchmarkAesEncrypt-8 1000000 1948 ns/op
BenchmarkAesDecrypt-8 1000000 1175 ns/op
BenchmarkRsaEncrypt-8 20000 96785 ns/op
BenchmarkRsaDecrypt-8 10000 210501 ns/op
BenchmarkHmac-8 500000 2535 ns/op
BenchmarkChecksum-8 3000000 496 ns/op
PASS
ok github.com/sniper365/golang-crypto-package 13.315s
```
### Coverage
```
go test -cover
PASS
coverage: 77.0% of statements
ok github.com/sniper365/golang-crypto-package 0.029s
```
### Usage
Checkout the example file in the `example` folder
```go
package main
import (
"bytes"
"encoding/base64"
"io"
"io/ioutil"
"log"
"os"
"github.com/sniper365/golang-crypto-package"
)
/*
## Creating RSA Public/Private Key Pair
openssl genpkey -algorithm RSA -out private_key.pem -pkeyopt rsa_keygen_bits:2048
openssl rsa -in private_key.pem -out private_key.pem
openssl rsa -pubout -in private_key.pem -out public_key.pem
*/
func main() {
key := []byte("1234543444555666")
cryptValue := "This is a long text which will be encrypted"
err := ioutil.WriteFile("/tmp/temp_file", []byte(cryptValue), 0644)
log.Println("Performing Operations on ", cryptValue)
// AES Encrypt
encryptedValue, err := crypto.AesEncrypt([]byte(cryptValue), key)
if err == nil {
log.Print("Encrypted Value: ", encryptedValue)
}
decryptedValue, err := crypto.AesDecrypt(encryptedValue, key)
if err == nil {
log.Println("Decrypted Value: ", string(decryptedValue))
}
hmacValue := crypto.HmacValue([]byte(cryptValue), key)
if err == nil {
log.Println("HMAC Value: ", hmacValue)
}
checksum := crypto.Checksum([]byte(cryptValue))
if err == nil {
log.Println("Checksum Value: ", checksum)
}
checksumFile := crypto.ChecksumFile("/tmp/temp_file")
if err == nil {
log.Println("Checksum File Value: ", checksumFile)
}
pubKeyBytes := readFile("public_key.pem")
rsaEncryptedValue, err := crypto.RsaEncrypt([]byte(cryptValue), pubKeyBytes)
if err == nil {
rsaEncryptedValueEncoded := base64.StdEncoding.EncodeToString(rsaEncryptedValue)
log.Println("RSA Encrypted Value: ", rsaEncryptedValueEncoded)
}
privKeyBytes := readFile("private_key.pem")
rsaDecryptedValue, err := crypto.RsaDecrypt(rsaEncryptedValue, privKeyBytes)
if err == nil {
log.Println("RSA Encrypted Value: ", string(rsaDecryptedValue))
}
}
func readFile(filename string) []byte {
buf := bytes.NewBuffer(nil)
f, _ := os.Open(filename)
io.Copy(buf, f)
f.Close()
s := buf.Bytes()
return s
}
```
### Sample Script Output
```shell
go run main.go
INFO[0000] Performing Operations on This is a long text which will be encrypted
INFO[0000] Encrypted Value: g6Fj2gAwOKX9QpLyER/5yhLh8it7sw8wxOrlFe2o/AHDd+N/HequAMJXA2Pau2CwhXB68rRvoWmwZaukNK5L2zp3RWbUxd+UDaFroA==
INFO[0000] Decrypted Value: This is a long text which will be encrypted
INFO[0000] HMAC Value: ZTFiNTFlYTQyYWFmNzI2ZTY5MDQ5NzYzODQ4OTU3MzEwOWQyNTNlNjhjMmMwN2U1MDVhZGE0ZThhNjkwMWI0YjVjMDAzOWNjMmZlNzQ3NDdhYjI3OWJjZTM5NTk1MjFiNDU1OTA5YjI4ZGRlZDEzYjYxMmE5NjI0OTJjMmNhNjY=
INFO[0000] Checksum Value: 091d3d091d2e8359cb56a881a3e2c92c5a6708996a017dcbf17979119fb630ca
INFO[0000] Checksum File Value: 091d3d091d2e8359cb56a881a3e2c92c5a6708996a017dcbf17979119fb630ca
INFO[0000] RSA Encrypted Value: nKVVuCY7bPzNvfCx+NCa/3QYiliinc2Jhuvf7ZQTc87ZvcDOWiQwvXfkicLLv9WqqjmvzxWGTqxeJvN9Gw9SzRUAadgeQapS4VRR5VoTYsIEs8ye9yyyWzeAf6tp1bsj6GclE3MozPYcC4GMeeyGsrVb1JReNboUxZYOYd5wdqAwwG9MJtaq7pO2rFE7vkP3TGBlP53DzjAttFTilGV/2IbvyRmGUZsuyrKc4nJt+wvzPUVulzMcnqD9wRBPkAJ66SnxK/floYeCLt7U006om+xr19R+JKjLtzO9SDy8YNsv5++jUYhKcjfcts3BSExqO+HhJ5inswr9uRsOvJrvPg==
INFO[0000] RSA Encrypted Value: This is a long text which will be encrypted
```