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- #!/usr/bin/env bash
- SIGOPT=rsa_padding_mode:pss
- SIGOPT2=rsa_pss_saltlen:-1
- function usage() {
- cat <<_EOT_
- Usage:
- $0 <pri key> <pub key> <file name>
- pri key : private key for sign/verify
- pub key : public key for sign/verify
- file name : file name to be signed
- _EOT_
- exit 1
- }
- if [ $# -ne 3 ]; then
- usage
- fi
- # $1 private key for sign/verify
- # $2 public key for verify
- # $3 file for sign/verify
- openssl dgst -sha256 -sign $1 -sigopt $SIGOPT -sigopt $SIGOPT2 -out $3.sign $3
- echo verify by private key
- openssl dgst -sha256 -prverify $1 -sigopt $SIGOPT -sigopt $SIGOPT2 -signature $3.sign $3
- echo verify by public key
- openssl dgst -sha256 -verify $2 -sigopt $SIGOPT -sigopt $SIGOPT2 -signature $3.sign $3
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