HSM KitHSM Kit
English

📚 Security Knowledge Base

Master the concepts behind the tools.

In-depth guides on cryptography, payment security, and HSM management.
All Guides (38)Key Management (8)Payment Security (15)Encryption (5)PKI & Certificates (5)General (5)

Featured Guides

Key Management

The Ultimate Guide to Key Splitting & KCV

Learn the mathematics behind XOR key splitting, understand Key Check Values (KCV), and master PCI DSS compliance for cryptographic key management.
8 min read
Key Management

TR-31 Key Block Format Explained

A comprehensive guide to ANSI X9.143 / TR-31 key block format, including structure, key usage codes, and practical encoding examples.
10 min read

Key Management

Key Management
Futurex HSM Key Management: MFK Variants & Key Schemes
May 21 · 8 min
Key Management
Atalla AKB Key Block Format: Header, Encryption & Validation
May 21 · 8 min
Key Management
SafeNet Key Management: Luna HSM & KM Key Variants
May 21 · 7 min
Key Management
Thales LMK Key Encryption: Schemes, Variants & Key Types
May 21 · 9 min

Payment Security

Payment Security
ISO 8583 Message Parser: MTI, Bitmap & Data Elements
May 21 · 9 min
Payment Security
AS2805: Australian Payment Standard for Terminal Keys & MAC
May 21 · 10 min
Payment Security
AMEX CSC: Card Security Code Calculation (CSC3/CSC4/CSC5)
May 21 · 7 min
Payment Security
Mastercard Dynamic CVC3: EMV Verification & ATC
May 21 · 7 min

Encryption

Encryption
Format-Preserving Encryption (FPE): FF1, FF3-1 & Tokenization
May 21 · 9 min
Encryption
DES & 3DES: The Legacy Encryption Standard in Payments
Apr 3 · 9 min
Encryption
AES Encryption Explained: Modes, Padding & Best Practices
Apr 3 · 10 min
Encryption
RSA Encryption Guide: Keys, Padding & When to Use It
Apr 3 · 9 min

PKI & Certificates

PKI & Certificates
RSA DER Public Key: Format, Structure & Decoding
May 21 · 8 min
PKI & Certificates
SSL/TLS Certificates: X.509 Structure, Chain & Validation
May 21 · 10 min
PKI & Certificates
Hash Functions: MD5, SHA-256, BLAKE2 & When to Use Each
Apr 3 · 8 min
PKI & Certificates
ASN.1 & X.509 Certificates: A Practical Guide
Apr 3 · 11 min

General

General
Character Encoding Explained: ASCII, EBCDIC, Hex & Binary
May 21 · 7 min
General
BCD (Binary Coded Decimal): Packed, Unpacked & Financial Messages
May 21 · 6 min
General
Check Digits: Luhn Algorithm, Mod 10 & Validation Methods
May 21 · 6 min
General
Base94 Encoding: Compact Data Representation
May 21 · 5 min