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3.2 Step 2. Append Length Connected: An Internet Encyclopedia
3.2 Step 2. Append Length

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3.2 Step 2. Append Length

3.2 Step 2. Append Length

A 64-bit representation of b (the length of the message before the padding bits were added) is appended to the result of the previous step. In the unlikely event that b is greater than 2^64, then only the low-order 64 bits of b are used. (These bits are appended as two 32-bit words and appended low-order word first in accordance with the previous conventions.)

At this point the resulting message (after padding with bits and with b) has a length that is an exact multiple of 512 bits. Equivalently, this message has a length that is an exact multiple of 16 (32-bit) words. Let M[0 ... N-1] denote the words of the resulting message, where N is a multiple of 16.


Next: 3.3 Step 3. Initialize MD Buffer

Connected: An Internet Encyclopedia
3.2 Step 2. Append Length

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