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Tiger is a cryptographic hash function designed by Ross Anderson and Eli Biham in 1995. It produces a 192-bit (24-byte) hash value, typically expressed as a 48-character hexadecimal number. Tiger was designed to be fast on 64-bit processors while remaining secure.
⚠️ Security Note: While Tiger is considered more secure than MD4 and MD5, it has known theoretical vulnerabilities and should not be used for new security-critical applications. Consider using SHA-256 or SHA-3 for maximum security.
Tiger is used in various applications, particularly where 64-bit performance is important:
| Application | Usage |
|---|---|
| TTH (Tiger Tree Hash) | Used in peer-to-peer file sharing for file integrity verification |
| Cryptographic applications | Some security protocols and applications where 64-bit performance is needed |
| Digital forensics | Used in some digital forensics tools for data integrity verification |
| Algorithm | Output Size | Security Status | Performance |
|---|---|---|---|
| MD4 | 128 bits | Broken | Fast on 32-bit |
| MD5 | 128 bits | Vulnerable | Fast on 32-bit |
| SHA-1 | 160 bits | Vulnerable | Moderate |
| Tiger | 192 bits | Theoretical weaknesses | Fast on 64-bit |
| SHA-256 | 256 bits | Secure | Slower but secure |
💡 For security-critical applications, always use modern hash algorithms like SHA-256, SHA-3, or BLAKE2. Tiger can be used for non-cryptographic purposes like checksums or in applications where its specific performance characteristics are beneficial.
