/crypto/ Recent content in Crypto & Blockchain on Stepperbox Hugo en-us /crypto/cryptography/ Mon, 01 Jan 0001 00:00:00 +0000 /crypto/cryptography/ <p>Symmetric and asymmetric encryption, key exchange, hashing, digital signatures, and practical tools like GPG, OpenSSL, and age. How to protect data at rest and in transit.</p> /crypto/public-key-cryptography/ Mon, 01 Jan 0001 00:00:00 +0000 /crypto/public-key-cryptography/ <p>Asymmetric cryptography in depth — RSA, elliptic curves, Diffie-Hellman, key exchange, digital signatures, and certificate chains. The mathematical foundations and practical applications that make secure communication possible without shared secrets.</p> /crypto/steganography/ Mon, 01 Jan 0001 00:00:00 +0000 /crypto/steganography/ <p>Hiding messages in plain sight — embedding data in images, audio, video, and text. Techniques, tools, and the relationship between steganography and plausible deniability.</p> /crypto/blockchain-internet/ Mon, 01 Jan 0001 00:00:00 +0000 /crypto/blockchain-internet/ <p>Decentralized naming, storage, and communication built on blockchain infrastructure — Handshake, IPFS, ENS, and other protocols for an internet that doesn&rsquo;t depend on ICANN or centralized hosting.</p> /crypto/digital-identities/ Mon, 01 Jan 0001 00:00:00 +0000 /crypto/digital-identities/ <p>Self-sovereign identity, decentralized identifiers, PGP web of trust, and managing digital presence. Controlling who you are online without depending on centralized authorities.</p>