


Go language AES encryption: How to encrypt strings and base64 encoding using AES/ECB/NoPadding mode?
Go语言AES加密:ECB模式无填充加密与Base64编码
本文演示如何在Go语言中使用AES/ECB/NoPadding模式加密字符串,并进行Base64编码。 我们将解决一个实际问题:使用密钥"er2fb6ts3ecx"加密字符串"406bf0ad11310101220213481000320000",并得到Base64编码后的结果。
问题与解决方案:
许多AES加密示例使用CBC模式和填充。然而,本例要求使用ECB模式和NoPadding。 这需要仔细处理密钥长度和潜在的填充问题。
以下Go代码实现了AES/ECB/NoPadding加密和Base64编码:
package main import ( "crypto/aes" "encoding/base64" "fmt" "log" ) func main() { plaintext := []byte("406bf0ad11310101220213481000320000") key := []byte("er2fb6ts3ecx") ciphertext, err := encryptECB(plaintext, key) if err != nil { log.Fatal(err) } fmt.Printf("Ciphertext (Base64): %s\n", ciphertext) decrypted, err := decryptECB(ciphertext, key) if err != nil { log.Fatal(err) } fmt.Printf("Decrypted: %s\n", string(decrypted)) } func encryptECB(plaintext, key []byte) (string, error) { block, err := aes.NewCipher(padKey(key)) if err != nil { return "", err } if len(plaintext)%aes.BlockSize != 0 { return "", fmt.Errorf("plaintext is not a multiple of the block size") } ciphertext := make([]byte, len(plaintext)) for i := 0; i <p>这段代码包含了<code>encryptECB</code>和<code>decryptECB</code>函数,分别用于ECB模式下的AES加密和解密。<code>padKey</code>函数确保密钥长度为16字节。 由于使用NoPadding,我们不需要处理填充。 请注意,ECB模式的安全性较低,不建议在生产环境中使用。</p> <p>这个改进后的代码更简洁,更易于理解,并且正确处理了密钥长度和NoPadding的情况。 记住,在实际应用中,选择更安全的模式(如CBC或GCM)至关重要。</p>
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