[tor-commits] [torspec] 02/04: tor-spec: define the EXP(a, b) function

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commit 4384e30ca2c7d64aad9462a4de1ce1e761831f56
Author: Emil Engler <me at emilengler.com>
AuthorDate: Fri May 5 14:10:11 2023 +0200

    tor-spec: define the EXP(a, b) function
    
    This commit adds an explanation of the meaning behind the EXP(a, b)
    function, primarily targeted for readers without a deep understanding of
    the cryptography.
    
    Fixes #195
---
 tor-spec.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tor-spec.txt b/tor-spec.txt
index 8f30624..0c0573c 100644
--- a/tor-spec.txt
+++ b/tor-spec.txt
@@ -1267,6 +1267,7 @@ see tor-design.pdf.
                   a private/public keypair.
       m_expand  = PROTOID | ":key_expand"
       KEYID(A)  = A
+      EXP(a, b) = The ECDH algorithm for establishing a shared secret.
 
    To perform the handshake, the client needs to know an identity key
    digest for the server, and an ntor onion key (a curve25519 public

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