Generate RSA 2048-bit & 4096-bit Key Pairs
Create asymmetric RSA public and private key pairs formatted in standard SPKI and PKCS#8 PEM formats.
About This Tool
RSA (Rivest–Shamir–Adleman) is an asymmetric cryptographic algorithm used for secure data transmission, SSH keys, digital signatures, and SSL/TLS certificates.
Key Features
2048-bit and 4096-bit key generation
Standard PEM export format
Web Crypto RSA-OAEP engine
One-click copyable cards
How to Use
- 1Select your key size: 2048-bit (Standard) or 4096-bit (Maximum Security).
- 2Click 'Generate RSA Key Pair'.
- 3Copy your Public Key (SPKI PEM) and Private Key (PKCS#8 PEM).
Why Use ToolSnippet RSA Public & Private Key Pair Generator?
Generates standard PEM blocks (-----BEGIN PUBLIC KEY-----, -----BEGIN PRIVATE KEY-----).
Generated securely inside your browser's crypto sandbox with zero network requests.
Tips for Best Results
- Never share your private key with anyone; only distribute your public key
Frequently Asked Questions
Should I use 2048-bit or 4096-bit RSA?
2048-bit is the industry standard and offers high security with fast operations. 4096-bit offers future-proof security but takes slightly longer to compute.
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