fcic.cc key system
Generate keys, sign messages, and encrypt/decrypt data with modern cryptography
Key Generation
No Keys
Name:
Email:
Passphrase:
Advanced Options
Configure key algorithm, size, expiration, and other advanced settings.
Current Settings:
Algorithm:
ECC (Curve25519)
Expiration:
2 years
Usage:
Sign, Encrypt, Certify
Generate Key Pair
Save
Load
Private
Public
Key Information
Key ID
-
Fingerprint
-
Algorithm
-
Created
-
Copy Public Key
Copy Private Key
Sign/Verify
Keys Required
Sign Message
Verify Message
Message to Sign:
Hello, this is a test message that will be digitally signed!
Sign Message
Signed Message to Verify:
Custom Public
Signer's Public Key:
Verify Message
Encrypt
Keys Required
Message
File
Message to Encrypt:
This is a secret message that will be encrypted!
File to Encrypt:
Selected:
(
)
Recipient's Public Key:
Change Public
Encrypt Message
Sign
Adds your signature before encryption.
Decrypt
Keys Required
Message
File
Encrypted Message to Decrypt:
Encrypted File to Decrypt:
Selected:
(
)
Decrypt Message
Verify
Validates signatures as part of decryption.
Advanced Key Generation Options
×
Key Algorithm
ECC (Curve25519)
- Modern, fast, and secure
Recommended for most users. Provides excellent security with smaller key sizes.
RSA 2048-bit
- Traditional algorithm
Widely compatible but larger key size. Minimum recommended RSA size.
RSA 4096-bit
- High security RSA
Maximum security RSA option but slower performance and larger keys.
Key Expiration
Never expires (not recommended)
1 year
2 years (recommended)
3 years
5 years
Regular key rotation is a security best practice.
Key Usage
Sign messages and verify signatures
Encrypt and decrypt messages
Certify other keys (master key capability)
Additional Options
Key Comment (optional):
Optional comment to help identify this key.