Author: Patrick Palmer

When using cryptography to protect data, protocol designers often prefer symmetric keys and algorithms for their speed and efficiency. However, when data is exchanged across an untrusted network such as the internet, it becomes difficult to ensure that only the exchanging parties can know the same key. Asymmetric key pairs and algorithms help to solve […]

October 28, 2022: This blog post has been updated to reflect that CBC has changed to CTR, as well as a few more modifications. This blog post discusses how you can use AWS Key Management Service (AWS KMS) RSA public keys on end clients or devices and encrypt data, then subsequently decrypt data by using […]

Code signing is the process of digitally signing executables and scripts to confirm the software author and to demonstrate that the code has not been altered or corrupted since it was signed. Packaged software uses branding and trusted sales outlets to assure users of its integrity, but these guarantees are not available when code is […]