Private Key Format Validation Tool

📖 Description

1. Why is Private Key Format Validation Necessary?

A private key is the sole credential for accessing protected resources (such as assets, servers, and communications). Its format is extremely intricate and strict:

• Prevent Deployment Errors: Servers (e.g., Nginx, SSH) have strict requirements for the start/end tags (e.g., -----BEGIN RSA PRIVATE KEY-----) and Base64 encoding of private keys. Even minor character omissions can cause loading failures.
• Confirm Address Derivation: In blockchain development, verifying the validity of a private key (in WIF or Hex format) can prevent asset transfer failures caused by input errors (e.g., Base58 checksum mismatch).
• Identify Encryption Type: Quickly identify whether a private key text from an unknown source is in RSA, ECC, or the Chinese national standard SM2 format.
• Check Compliance: Verify that the private key length (e.g., RSA 2048-bit) meets the minimum requirements of modern security standards.

2. Core Feature Analysis

This site's tool provides in-depth structured reports by parsing the metadata of private keys:

A. Certificate-Type Private Key Parsing (PEM/PKCS)

• Format Identification: Automatically distinguishes between PKCS#1 (legacy format) and PKCS#8 (modern universal format).
• Algorithm Insight: Identifies the algorithm to which the private key belongs (RSA, DSA, EC, ED25519).
• Key Parameters: Extracts key length (Key Size), curve name (Curve Name, e.g., secp256k1), etc.

B. Blockchain Private Key Validation (Blockchain WIF/Hex)

• WIF (Wallet Import Format): Validates the checksum of Base58-encoded private keys (e.g., for Bitcoin).
• Ethereum Hex: Checks the length and validity of 64-character hexadecimal private keys.
• Compressed/Uncompressed: Automatically identifies whether the corresponding public key is in compressed or uncompressed format.

C. Absolute Privacy Guarantee: Pure Frontend Processing

• Core Security Principle: Private keys are the highest level of sensitive information. All parsing logic of this tool is executed locally in your browser.
• Zero Data Upload: Your private key text is never sent to this site's server. Even in an offline state (as long as the page is loaded), the tool can still function normally, ensuring the absolute security of your private key assets.

3. Supported Private Key Format Reference Table

4. Brief Operation Process

1. Paste Private Key: Paste your private key text (including PEM tags or Hex strings) into the input box.
2. Click Validate: Click the "Start Analysis/Validation" button.
3. Review Report:
   • Status: Green "Valid" indicates correct format; red "Invalid" with specific error descriptions.
   • Type: Displays the identified algorithm (e.g., RSA 2048).
   • Checksum: For blockchain private keys, shows the checksum verification result.
4. Secure Cleanup: After validation, click the "Clear" button to completely erase any residual private key data from local memory.

5. Why Choose This Site's Private Key Validator?

• Universal Compatibility: One tool handles two completely different private key systems: web servers and blockchain.
• Precise Error Reporting: Not only indicates correctness but also specifies the error type, such as "missing tag," "illegal Base64 character," or "checksum error."
• Minimalist Interface: Designed specifically for technical personnel, avoiding unnecessary frills and focusing on core needs.
• Completely Free: No registration required, ready to use immediately. Privacy and security standards are on par with professional offline software.

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