


Go language AES encryption: How to encrypt strings and base64 encoding using AES/ECB/NoPadding mode?
Apr 02, 2025 am 10:30 AMGo語言AES加密:ECB模式無填充加密與Base64編碼
本文演示如何在Go語言中使用AES/ECB/NoPadding模式加密字符串,并進(jìn)行Base64編碼。 我們將解決一個(gè)實(shí)際問題:使用密鑰"er2fb6ts3ecx"加密字符串"406bf0ad11310101220213481000320000",并得到Base64編碼后的結(jié)果。
問題與解決方案:
許多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。 這需要仔細(xì)處理密鑰長度和潛在的填充問題。
以下Go代碼實(shí)現(xiàn)了AES/ECB/NoPadding加密和Base64編碼:
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>這段代碼包含了<code>encryptECB</code>和<code>decryptECB</code>函數(shù),分別用于ECB模式下的AES加密和解密。<code>padKey</code>函數(shù)確保密鑰長度為16字節(jié)。 由于使用NoPadding,我們不需要處理填充。 請注意,ECB模式的安全性較低,不建議在生產(chǎn)環(huán)境中使用。</p> <p>這個(gè)改進(jìn)后的代碼更簡潔,更易于理解,并且正確處理了密鑰長度和NoPadding的情況。 記住,在實(shí)際應(yīng)用中,選擇更安全的模式(如CBC或GCM)至關(guān)重要。</p>
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