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Support Taproot tweaked signer rounds #4018

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Support Taproot tweaked signer rounds #4018

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2e0a054
Support Taproot tweaked signer rounds
mswilkison Jun 5, 2026
3a259ec
Support seeded tbtc-signer DKG
mswilkison Jun 5, 2026
4c9c654
Reuse signer rounds across member identifiers
mswilkison Jun 5, 2026
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8 changes: 8 additions & 0 deletions pkg/tbtc/signer/src/api.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,8 @@ pub struct RunDkgRequest {
pub session_id: String,
pub participants: Vec<DkgParticipant>,
pub threshold: u16,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub dkg_seed_hex: Option<String>,
}

#[derive(Clone, Debug, Deserialize, PartialEq, Eq, Serialize)]
Expand All @@ -29,6 +31,8 @@ pub struct StartSignRoundRequest {
pub message_hex: String,
pub key_group: String,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub taproot_merkle_root_hex: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub signing_participants: Option<Vec<u16>>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub attempt_context: Option<AttemptContext>,
Expand Down Expand Up @@ -61,6 +65,8 @@ pub struct RoundState {
pub required_contributions: u16,
pub message_digest_hex: String,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub taproot_merkle_root_hex: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub signing_participants: Option<Vec<u16>>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub attempt_transition_telemetry: Option<AttemptTransitionTelemetry>,
Expand All @@ -70,6 +76,8 @@ pub struct RoundState {
#[derive(Clone, Debug, Deserialize, PartialEq, Eq, Serialize)]
pub struct FinalizeSignRoundRequest {
pub session_id: String,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub taproot_merkle_root_hex: Option<String>,
pub round_contributions: Vec<RoundContribution>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub attempt_context: Option<AttemptContext>,
Expand Down
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