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feat(security): encrypt login password (#1583)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| // Copyright 2023 PingCAP, Inc. Licensed under Apache-2.0. | ||
|
|
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| package user | ||
|
|
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| import ( | ||
| "crypto/rand" | ||
| "crypto/rsa" | ||
| "crypto/x509" | ||
| "encoding/base64" | ||
| "encoding/pem" | ||
| ) | ||
|
|
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| // Generate RSA private/public key. | ||
| func GenerateKey() (*rsa.PrivateKey, *rsa.PublicKey, error) { | ||
| privateKey, err := rsa.GenerateKey(rand.Reader, 2048) | ||
| if err != nil { | ||
| return nil, nil, err | ||
| } | ||
|
|
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| publicKey := &privateKey.PublicKey | ||
| return privateKey, publicKey, nil | ||
| } | ||
|
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| // Export public key to string | ||
| // Output format: | ||
| // -----BEGIN PUBLIC KEY----- | ||
| // MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA67F1RPMUO4SjARRe4UfX | ||
| // J7ZOCbcysna0jx2Av14KteGo6AWFHhuIxZwgp83GDqFv0Dhc/be7n+9V5vfq0Ob4 | ||
| // fUtdjBio5ciF4pcqzVGbddfJ0R2e52DF6TI2pDgUFdN+1bmGDwZOCyrwBvVh0wW2 | ||
| // jAI+QfQyRimZOMqFeX97XjW32vGk7cxNYMys9ExyJcfzfLanbzOwp6kdNbPXnYtU | ||
| // Y2nmp+evlPKrRzBPnmO0bpZhYHklrRxLo/u/mThysMEttLkgzCare+JPQyb3z3Si | ||
| // Q2E7WG4yz6+6L/wB4etHDfRljMOtqEwv9z4inUfh5716Mg23Div/AbwqGPiKPZf7 | ||
| // cQIDAQAB | ||
| // -----END PUBLIC KEY-----. | ||
| func ExportPublicKeyAsString(publicKey *rsa.PublicKey) (string, error) { | ||
| publicKeyBytes, err := x509.MarshalPKIXPublicKey(publicKey) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
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| publicKeyPEM := &pem.Block{ | ||
| Type: "PUBLIC KEY", | ||
| Bytes: publicKeyBytes, | ||
| } | ||
|
|
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| publicKeyString := string(pem.EncodeToMemory(publicKeyPEM)) | ||
|
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| return publicKeyString, nil | ||
| } | ||
|
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| // Dump public key to base64 string | ||
| // 1. Have no header/tailer line | ||
| // 2. Key content is merged into one-line format | ||
| // | ||
| // The output is: | ||
| // | ||
| // MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2y8mEdCRE8siiI7udpge......2QIDAQAB | ||
| func DumpPublicKeyBase64(publicKey *rsa.PublicKey) (string, error) { | ||
| keyBytes, err := x509.MarshalPKIXPublicKey(publicKey) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
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| keyBase64 := base64.StdEncoding.EncodeToString(keyBytes) | ||
| return keyBase64, nil | ||
| } | ||
|
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| // Dump private key to base64 string | ||
| // 1. Have no header/tailer line | ||
| // 2. Key content is merged into one-line format | ||
| // | ||
| // The output is: | ||
| // | ||
| // MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2y8mEdCRE8siiI7udpge......2QIDAQAB | ||
| func DumpPrivateKeyBase64(privatekey *rsa.PrivateKey) (string, error) { | ||
| keyBytes := x509.MarshalPKCS1PrivateKey(privatekey) | ||
|
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| keyBase64 := base64.StdEncoding.EncodeToString(keyBytes) | ||
| return keyBase64, nil | ||
| } | ||
|
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| // Decrypt by private key. | ||
| func Decrypt(cipherText string, privateKey *rsa.PrivateKey) (string, error) { | ||
| // the cipherText is encoded by base64 in the frontend by jsEncrypt | ||
| decodedText, err := base64.StdEncoding.DecodeString(cipherText) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
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| decryptedText, err := rsa.DecryptPKCS1v15(rand.Reader, privateKey, decodedText) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
|
||
| return string(decryptedText), nil | ||
| } |
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