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Is the length of a string hashed with sha512 always the same?
If so, what is it?
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The hash size for the SHA512 algorithm is 512 bits. This is an abstract class.
As the name implies, it's 512 bits, that is 64 bytes.
In the case of SHA-512, it's 512 binary digits, or 64 bytes, or 128 hexadecimal characters, or an 88 character long base64 encoded string. They all correspond to the same underlying hash, just as "one", "un" and "eins" all correspond to 1.
They differ in the word size; SHA-256 uses 32-bit words where SHA-512 uses 64-bit words.
As the name implies, it's 512 bits, that is 64 bytes.
But that's the hash, maybe you're wondering about a specific representation of that hash in string, as is commonly used, then it depends of the given representation.
If you write the hash in hexa, then it will be 128 characters.
If you write the hash in base64, then it will be 86 bytes (or 88 with padding).
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