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22 lines
612 B
Bash
22 lines
612 B
Bash
#!/bin/sh
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#Example usage:
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#cat script.js | sign-script.sh
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#sh sign-script.sh script.js
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#Set your key paths here
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PRIVATE_KEY_PATH=~/.ssh/id_rsa
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PUBLIC_KEY_PATH=~/.ssh/id_rsa.pub
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PUBLIC_KEY_PKCS8=$(ssh-keygen -f "$PUBLIC_KEY_PATH" -e -m pkcs8 | tail -n +2 | head -n -1 | tr -d '\n')
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echo "This is your public key: '$PUBLIC_KEY_PKCS8'"
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if [ $# -eq 0 ]; then
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# No parameter provided, read from stdin
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DATA=$(cat)
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else
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# Parameter provided, read from file
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DATA=$(cat "$1")
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fi
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SIGNATURE=$(echo -n "$DATA" | openssl dgst -sha512 -sign ~/.ssh/id_rsa | base64 -w 0)
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echo "This is your signature: '$SIGNATURE'"
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