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smrtprm

RSA message signer, implemented in Java using Maven as the build tool.

To sign a message from the command line, use the rsa_signer.sh script:

./rsa_signer.sh "message to sign"

Implementation notes:

  • In order to promote immutability, all methods are static, making classes stateless (except for the static constants in RsaSignerApp).
  • The private key file is written with 600 permissions (i.e., -rw-------).
  • Max message length can be configured using the max_message_len property.
  • Key size can be configured using the key_size property.

Build:

  • mvn clean install

CI: