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Rename signature digests to clarify differences wrt txid digests.

This commit is contained in:
Kris Nuttycombe 2021-02-15 09:59:01 -07:00
parent a779c1043d
commit 566be18f40
1 changed files with 16 additions and 16 deletions
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zip-0244.rst
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@ -359,7 +359,7 @@ described in detail below::
signature_digest
├── header_digest
├── transparent_digest
├── transparent_sig_digest
├── sprout_digest
└── sapling_digest
@ -367,10 +367,10 @@ signature_digest
----------------
A BLAKE2b-256 hash of the following values ::
S.1: header_digest (32-byte hash output)
S.2: transparent_digest (32-byte hash output)
S.3: sprout_digest (32-byte hash output)
S.4: sapling_digest (32-byte hash output)
S.1: header_digest (32-byte hash output)
S.2: transparent_sig_digest (32-byte hash output)
S.3: sprout_digest (32-byte hash output)
S.4: sapling_digest (32-byte hash output)
The personalization field of this hash is set to::
@ -386,8 +386,8 @@ S.1: header_digest
``````````````````
Identical to that specified for the transaction identifier.
S.2: transparent_digest
```````````````````````
S.2: transparent_sig_digest
```````````````````````````
If we are producing a hash for the signature over a transparent input,
the value of the digest produced here depends upon the value of a ``hash_type``
flag as in ZIP 143 [#zip-0143]_.
@ -397,17 +397,17 @@ The construction of each component below depends upon the values of the
This digest is a BLAKE2b-256 hash of the following values ::
S.2a: prevouts_digest (32-byte hash)
S.2b: sequence_digest (32-byte hash)
S.2c: outputs_digest (32-byte hash)
S.2a: prevouts_sig_digest (32-byte hash)
S.2b: sequence_sig_digest (32-byte hash)
S.2c: outputs_sig_digest (32-byte hash)
S.2d: txin_sig_digest (32-byte hash)
The personalization field of this hash is set to::
"ZTxIdTranspaHash"
S.2a: prevouts_digest
'''''''''''''''''''''
S.2a: prevouts_sig_digest
'''''''''''''''''''''''''
This is a BLAKE2b-256 hash initialized with the personalization field value
``ZTxIdPrevoutHash``.
@ -421,8 +421,8 @@ otherwise::
the hash is immediately finalized, without being updated with any
additional data
S.2b: sequence_digest
'''''''''''''''''''''
S.2b: sequence_sig_digest
'''''''''''''''''''''''''
This is a BLAKE2b-256 hash initialized with the personalization field value
``ZTxIdSequencHash``.
@ -437,8 +437,8 @@ otherwise::
the hash is immediately finalized, without being updated with any
additional data
S.2c: outputs_digest
''''''''''''''''''''
S.2c: outputs_sig_digest
''''''''''''''''''''''''
This is a BLAKE2b-256 hash initialized with the personalization field value
``ZTxIdOutputsHash``.