Generator Kunci RSA
Generate RSA key pairs and export them in PEM format
100% gratis. Berjalan sepenuhnya di browser Anda - file dan data Anda tidak pernah meninggalkan perangkat Anda dan tidak ada yang diunggah ke server mana pun.
Tentang alat ini
RSA is a widely-used public-key cryptography algorithm - you generate a linked key PAIR (public and private), where data encrypted with the public key can only be decrypted with the private key, and vice versa for signing. This tool generates RSA key pairs and exports them in standard PEM format, ready to use in code or configuration.
Cara menggunakan alat ini
- Choose key lengthSelect 2048/4096-bit according to security policy and performance target.
- Generate RSA key pairCreate linked public/private PEM outputs for signing or encryption.
- Export and store securelyCopy/download keys and protect private key using secure secret storage.
- Validate integrationTest encryption/decryption or sign/verify flow in target environment.
Mengapa menggunakannya
- Quickly generates standards-compliant RSA PEM key pairs.
- Useful for API auth, certificates, and signature workflows.
- Saves setup time in development and testing environments.
- Helps teams understand public/private key separation clearly.
Penggunaan umum
- Preparing key pairs for JWT RS algorithms in staging.
- Testing signature verification between services.
- Creating temporary keys for CI or integration demos.
- Learning asymmetric cryptography operational workflow.
Tips untuk hasil lebih baik
- Protect private keys with strict access controls and rotation policy.
- Use passphrase-protected private keys where possible.
- Prefer generating long-term prod keys inside controlled infra/HSM.
- Track key IDs and issuance dates for lifecycle management.
Kesalahan yang harus dihindari
- Committing private keys to repository history.
- Using weak or outdated key sizes in production systems.
- Confusing encryption use with signing use without protocol design.
- Sharing private key over insecure communication channels.
Pertanyaan yang sering diajukan
The public key can be shared freely - others use it to encrypt data meant only for you, or verify signatures you created. The private key must be kept secret - you use it to decrypt data encrypted with your public key, or to create digital signatures.
Key generation runs in your browser using standard cryptographic APIs, but for genuinely sensitive production systems, many teams prefer generating keys directly on the target server/environment using established tooling (like OpenSSL) to minimize any exposure during transfer.
2048-bit is a common modern minimum for RSA keys; 4096-bit offers a larger security margin at the cost of slower performance - check what your specific use case or compliance requirement expects.
Yes. Rsa Keys is free for normal use with no account required, and ToolBox does not add a watermark to your result.
Most tools in this category run in your browser so the file stays on your device. If a tool needs a temporary server job, files are handled for that job only and are not kept as a lasting archive.
No install needed. Open Rsa Keys in your browser, add your file or paste your input, then download or copy the result.
Yes on modern mobile browsers. For large files, a desktop browser is usually faster and more reliable.
Try a different quality or format setting, use a smaller input, or open a related tool (for example compress before convert). Keep a copy of the original file before replacing it.
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