RSA 加解密 / 密钥对生成

免费在线 RSA 工具，支持公钥加密、私钥解密，支持 1024 / 2048 / 3072 / 4096 位密钥对一键生成，输出 PEM 格式
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Encrypt with public key
Decrypt with private key
Generate key pair
Public key
Paste PEM-format public key
Plaintext
Enter plaintext to encrypt
Result
User Guide
✨ Features
• 1024 / 2048 / 3072 / 4096-bit key-pair generation in one click • Public-key encrypt, private-key decrypt • PEM-format output, friendly to back-end integration • All computation happens locally; keys never leave your device
📖 How to Use
Step 1
Open "Generate key pair", pick a size and generate
Step 2
Switch to "Encrypt", paste public key + plaintext
Step 3
Switch to "Decrypt", paste private key + Base64 ciphertext
Step 4
Copy the result
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