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Merged
roman-khimov merged 1 commit into from
Mar 27, 2026
Merged

object/refs: deprecate TZ hash #385

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3 changes: 1 addition & 2 deletions object/types.proto
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Original file line number Diff line number Diff line change
Expand Up @@ -92,8 +92,6 @@ enum MatchType {
// payload_hash
// * $Object:objectType \
// object_type
// * $Object:homomorphicHash \
// homomorphic_hash
// * $Object:split.parent \
// object_id of parent
// * $Object:split.splitID \
Expand Down Expand Up @@ -193,6 +191,7 @@ message Header {
ObjectType object_type = 7 [json_name = "objectType"];

// Homomorphic hash of the object payload (Tillich-Zemor).
// DEPRECATED. Objects of 2.23+ version must have it empty.
neo.fs.v2.refs.Checksum homomorphic_hash = 8 [json_name = "homomorphicHash"];

// Session token, if it was used during Object creation. Need it to verify
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4 changes: 1 addition & 3 deletions proto-docs/object.md
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Expand Up @@ -951,7 +951,7 @@ Object Header
| payload_length | [uint64](#uint64) | | Size of payload in bytes. `0xFFFFFFFFFFFFFFFF` means `payload_length` is unknown. |
| payload_hash | [neo.fs.v2.refs.Checksum](#neo.fs.v2.refs.Checksum) | | SHA256 hash of payload bytes |
| object_type | [ObjectType](#neo.fs.v2.object.ObjectType) | | Type of the object payload content |
| homomorphic_hash | [neo.fs.v2.refs.Checksum](#neo.fs.v2.refs.Checksum) | | Homomorphic hash of the object payload (Tillich-Zemor). |
| homomorphic_hash | [neo.fs.v2.refs.Checksum](#neo.fs.v2.refs.Checksum) | | Homomorphic hash of the object payload (Tillich-Zemor). DEPRECATED. Objects of 2.23+ version must have it empty. |
| session_token | [neo.fs.v2.session.SessionToken](#neo.fs.v2.session.SessionToken) | | Session token, if it was used during Object creation. Need it to verify integrity and authenticity out of Request scope. Only one of `session_token` or `session_token_v2` can be set. |
| attributes | [Header.Attribute](#neo.fs.v2.object.Header.Attribute) | repeated | User-defined object attributes. Attributes vary in length from object to object, so keep an eye on the entire Header limit depending on the context. |
| split | [Header.Split](#neo.fs.v2.object.Header.Split) | | Position of the object in the split hierarchy |
Expand Down Expand Up @@ -1098,8 +1098,6 @@ prefix to the name. Here is the list of fields available via this prefix:
payload_hash
* $Object:objectType \
object_type
* $Object:homomorphicHash \
homomorphic_hash
* $Object:split.parent \
object_id of parent
* $Object:split.splitID \
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2 changes: 1 addition & 1 deletion proto-docs/refs.md
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Expand Up @@ -208,7 +208,7 @@ Checksum algorithm type.
| Name | Number | Description |
| ---- | ------ | ----------- |
| CHECKSUM_TYPE_UNSPECIFIED | 0 | Unknown. Not used |
| TZ | 1 | Tillich-Zemor homomorphic hash function |
| TZ | 1 | Tillich-Zemor homomorphic hash function DEPRECATED starting from 2.23 API version. |
| SHA256 | 2 | SHA-256 |


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1 change: 1 addition & 0 deletions refs/types.proto
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Expand Up @@ -147,6 +147,7 @@ enum ChecksumType {
CHECKSUM_TYPE_UNSPECIFIED = 0;

// Tillich-Zemor homomorphic hash function
// DEPRECATED starting from 2.23 API version.
TZ = 1;

// SHA-256
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