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ccna and ccnp salary.SHA-224 (224 bits).SHA-256 (256 bits).SHA-384 (384 bits).SHA-512 (512 bits).These four versions are collectively known as SHA.2, although the name SHA-2 is not standardized ° SHA.1, SHA.224, SHA.256, SHA-384, and SHA.5] 2 are secure hash algorithms required by law for use in certain U.S. government applications, including other cryptographic algorithms and protocols, to protect sensitive unclassified information.Note: Recommended hash algorithms include SHA-256. SHA-384, and SHA.512.7.2.2.3 Comparison of MD5 and SHA.7.2 Basic Integrity and Authenticity 195Both MD5 and SHA.1 are based on MD4, which makes MD5 and SHA-1 similar in many ways °SHA-1 and SHA-2 are resistant to brute force attacks because their digests are at least 32 bits longer than MD5 digests. SHA-1 consists of 80 steps and MD5 consists of 64 steps. The SHA-1 algorithm must also have a 160-bit buffer instead of MD5's 128-bit buffer. Because there are fewer steps, MD5 typically performs faster while using the same equipment. When choosing a hashing algorithm, use SHA-2, as it is currently the most secure. Security vulnerabilities have been found in both SHA-1 and MD5, so it is recommended that these algorithms no longer be used. When considering performance, the MD5 algorithm is slightly faster than the SHA-1 algorithm. However, MD5 is less secure than SHA-lo Note: Specifically, only SHA-256 or higher algorithms can be implemented in production networks.7.2.3 Authenticity of HMAC