14,954
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→雜湊碼 (hash value) e.g. MD5, SHA
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Explain the conversion process from 224 bits to 56 characters for SHA-224's output. Conversion process: | Explain the conversion process from 224 bits to 56 characters for SHA-224's output. Conversion process: | ||
* | * Original output: 224 bits | ||
* Every 4 bits converts to 1 hexadecimal character (hex character): 224 ÷ 4 = 56 | * '''Text Representation (Hexadecimal)''': Every 4 bits converts to 1 hexadecimal character (hex character): 224 ÷ 4 = 56 Therefore, it requires 56 hexadecimal characters to represent | ||
* '''Binary Storage Representation''': Every 8 bits equals 1 byte in binary storage: 224 ÷ 8 = 28 Therefore, it requires 28 bytes (binary(28)) to store efficiently | |||
[https://zh.wikipedia.org/wiki/MD5 MD5]: {{exclaim}} Not recommended to use this function to secure passwords | [https://zh.wikipedia.org/wiki/MD5 MD5]: {{exclaim}} Not recommended to use this function to secure passwords | ||