[Pkg-rust-maintainers] Bug#1108506: gpg-sq: clear-sign failed with debsign

[Leonardo Arias Fonseca]

Package: gpg-sq
Version: 0.13.1-3+b1
Severity: normal
X-Debbugs-Cc: agami+debian at riseup.net

Dear Maintainer,

I want to sign my debian package with sequoia, so I tried with gpg-sq and got the error "Unusable secret key".

```
golang-github-offchainlabs-go-bitfield import/git20250408.ad7364d 
❯ debsign -k 814701B018F2684D4234E927C279C6A1E423C96C -p gpg-sq
 signfile dsc ../golang-github-offchainlabs-go-bitfield_0.0~git20250408.ad7364d-2.dsc 814701B018F2684D4234E927C279C6A1E423C96C
gpg: skipped "814701B018F2684D4234E927C279C6A1E423C96C": Unusable secret key
gpg: /tmp/debsign.JSl3QUmL/golang-github-offchainlabs-go-bitfield_0.0~git20250408.ad7364d-2.dsc: clear-sign failed: Unusable secret key
debsign: gpg-sq error occurred!  Aborting....
```

I am learning about all of this, so I'm not sure if I'm doing something wrong in this command. I'm not sure what to try next.


-- System Information:
Debian Release: 13.0
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: riscv64

Kernel: Linux 6.12.32-amd64 (SMP w/20 CPU threads; PREEMPT)
Kernel taint flags: TAINT_OOT_MODULE
Locale: LANG=eo.UTF-8, LC_CTYPE=eo.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gpg-sq depends on:
ii  libbz2-1.0      1.0.8-6
ii  libc6           2.41-9
ii  libgcc-s1       14.2.0-19
ii  libgmp10        2:6.3.0+dfsg-3
ii  libhogweed6t64  3.10.1-1
ii  libnettle8t64   3.10.1-1
ii  libsqlite3-0    3.46.1-6
ii  libssl3t64      3.5.0-2

Versions of packages gpg-sq recommends:
ii  sq  1.3.1-2+b1

gpg-sq suggests no packages.

-- no debconf information