smimesign

S/MIME signing utility for cryptographically signing Git commits

brewmacoslinux

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S/MIME signing utility for use with Git

smimesign

Configure Git to use smimesign for commit signing$ git config --global gpg.format x509 && git config --global gpg.x509.program smimesign

Sign a commit with S/MIME$ git commit -S -m 'Signed commit message'

Verify an S/MIME signed commit$ git log --show-signature -1