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| -rw-r--r-- | doc/rend-spec.txt | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/doc/rend-spec.txt b/doc/rend-spec.txt index 0129ffe87..a74a81cfc 100644 --- a/doc/rend-spec.txt +++ b/doc/rend-spec.txt @@ -244,15 +244,11 @@ Tor Rendezvous Spec PK_ID is the hash of Bob's public key. RP is NUL-terminated. The data is encrypted to Bob's PK as follows: Suppose Bob's PK is L octets - long. If the data to be encrypted is shorter than L, then it is encrypted - directly (with no padding). If the data is at least as long as L, then a - randomly generated 16-byte symmetric key is prepended to the data, after - which the first L-16 bytes of the data are encrypted with Bob's PK; and the - rest of the data is encrypted with the symmetric key. - - [There's very little here is that is recognizable by Bob to let him - know if he decrypted it correctly. Perhaps we should add OAEP padding - to the RSA -- there is space -RD] + long. If the data to be encrypted is shorter than L-42, then it is + encrypted directly (with OAEP padding). If the data is at least as long + as L-42, then a randomly generated 16-byte symmetric key is prepended to + the data, after which the first L-16-42 bytes of the data are encrypted with + Bob's PK; and the rest of the data is encrypted with the symmetric key. 1.9. Introduction: From the Introduction Point to Bob's OP |