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I am looking to implement a secure passphrase-encrypted file format for a specific use case. The file format consists storing a randomly generated salt and IV along with the cipher text and a MAC to verify the file has not been altered.
Di… Continue reading Is my encryption format secure?
I’m working on a system that shares data between a client and server.
The end goal of this system is to store server-encrypted data on the client’s hard drive, using keys generated by the server. the client needs copies of the keys so tha… Continue reading Best practice for sharing and storing encrypted data between server and client
When the key is 32 bytes, IV is 24 bytes, and the plain text is 32 bytes as well, what’s the length of the output in number of bytes for this encryption algorithm
I am creating an internal application that will be used to generate and manage self-signed certificates and certificate authorities. Its primary use will be for generating certificates used in SSL decryption by my clients’ firewalls.
My go… Continue reading ChaCha Single-Use RNG with All Zero Plaintext + Nonce
I am trying to figure out how long the encryption/decryption time of a message with ChaCha20 Poly1305 is compared to how long it takes to send the message with TLSv1.2 between two phones. How much of the transmission time is the actual enc… Continue reading How long does it take to encrypt/decrypt a message with ChaCha20 Poly1305 compared to sending the message over TLS? [closed]
How Linux knows the pre-sequence numbers/checksum and segment \br
For Example :
\x6f\x70\x3d\x50\x41\x4d\x3a\x61\x75\x74\x68\x65\x6e\x74\x69\x63\x61\x74\x69\x6f\x6e\x20\x67\x72\x61\x6e\x74\x6f\x72\x73\x3d\x3f
OS App/Segment – Network/Frag… Continue reading Cause I am Curios Frame – Segment is Preflight=Obj+Header [closed]
I have a private file encryption project that I’m working on that currently uses Encrypt-then-MAC. However, I’ve been looking at age and the article that’s referenced in the spec that discusses encrypting streams with AEADs. It’s not possi… Continue reading How to implement ChaCha20Poly1305 with large files? (Streamed/Chunked AEADs)
Is there a way to add/enable ECDHE-ECDSA-CHACHA20-POLY1305 and ECDHE-RSA-CHACHA20-POLY1305 ciphersuites on Windows Server 2019 (Build 1809 or later) for HTTPS configuration of IIS webserver?
According to the TLS Cipher Suites in Windows 10… Continue reading Windows Server 2019: Add CHACHA20-POLY1305 ciphersuites for IIS
I was considering developing an application level software for file encryption after stress testing many of my implementations of popular symmetric ciphers. I would love to support multiple algorithms like AES (GCM / CBC/ CTR) , XChaCha20… Continue reading Is AES the recommended symmetric cipher for production level software?
I am new to ChaCha20. From the RFC —
The inputs to ChaCha20 are:
o A 256-bit key, treated as a concatenation of eight 32-bit little-
endian integers.
o A 96-bit nonce, treated as a concatenation of three 32-bit little-
e… Continue reading Using Chacha20 with a NULL nonce