HMAC(K,C) = SHA1(K ⊕ 0x5c5c… ∥ SHA1(K ⊕ 0x3636… ∥C))

The basic idea I get and I'm thinking⊕means some thing like plus. What are the two vertical line. (K is a pre-defined but arbitrary value and C is a counter.)

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- Aug 28th 2012, 07:21 AMnaftalimI'm trying to figure out the meaning of a math statement
*HMAC(**K,**C) = SHA1(**K ⊕ 0x5c5c… ∥ SHA1(**K ⊕ 0x3636… ∥**C))*

The basic idea I get and I'm thinking*⊕*means some thing like plus. What are the two vertical line. (K is a pre-defined but arbitrary value and C is a counter.)