Topics

Here is a list of all topics with brief descriptions:

[detail level 123]

Build Information
Build version information
Build configurations
Enabled modules and API versions
ASN.1 Handling	asn1: Process/encode/decode ASN.1 data structures and map OIDs
Base Types	base: Defines some high level types
Block Ciphers	block: Implementations of block cipher algorithms
AES	aes
AES ARMv8	aes_armv8: AES using ARMv8 crypto instructions
AES-NI	aes_ni: AES using AES-NI and SIMD instructions
AES Power8	aes_power8: AES using Power8 instructions
AES-VAES	aes_vaes: AES using VAES
AES Vector Permutation	aes_vperm: AES using Vector Permutation Instructions
ARIA	aria
Blowfish	blowfish
Camellia	camellia
Camellia using GFNI	camellia_gfni
Cascade	cascade
CAST-128	cast128
DES	des
GOST 28147-89	gost_28147
IDEA	idea
IDEA SSE2	idea_sse2: IDEA using SSE2 SIMD instructions
Kuznyechik	kuznyechik
Lion	lion
Noekeon	noekeon
Noekeon SIMD	noekeon_simd: Noekeon using SIMD instructions
SEED	seed
Serpent	serpent
Serpent AVX2	serpent_avx2: Serpent using AVX2 instructions
Serpent AVX512	serpent_avx512: Serpent using AVX512 instructions
Serpent SIMD	serpent_simd: Serpent using SIMD instructions
SHACAL-2	shacal2
SHACAL-2 ARMv8	shacal2_armv8: SHACAL-2 using ARMv8 crypto instructions
SHACAL-2 AVX2	shacal2_avx2: SHACAL-2 using AVX2 instructions
SHACAL-2 AVX512	shacal2_avx512: SHACAL-2 using AVX512 instructions
SHACAL-2 SIMD	shacal2_simd: SHACAL-2 using SIMD instructions
SHACAL-2 X86	shacal2_x86: SHACAL-2 using SSE instructions on x86
SM4	sm4
SM4 ARMv8	sm4_armv8: SM4 using ARMv8 crypto instructions
SM4 GFNI	sm4_gfni: SM4 using Intel GFNI
SM4 x86	sm4_x86: SM4 using Intel SM4 extension
Threefish-512	threefish_512
Twofish	twofish
Codecs	codec: Helpers for data encoding and decoding
Base32	base32: Base32 encoder and decoder
Base58	base58: Base58 encoder and decoder
Base64	base64: Base64 encoder and decoder
Hex	hex: Hex encoder and decoder
Compatibility	compat: Helpers for compatibility with other libraries
libsodium API	sodium: Partial compatibility implementation of the libsodium API
Compression	compression: Wrappers for compression algorithms
BZIP2	bzip2
ZLib	lzma
ZLib	zlib
Entropy Collection	entropy: Implementations of entropy sources
getentropy	getentropy: Wrapper for BSD's getentropy system call
RDSEED	rdseed: Wrapper for Intel's RDSEED instruction
Win32 Statistics	win32_stats: Entropy collection based on Windows statistics counters
Foreign Function Interface	ffi: C API for Botan's functionality
Filters	filters: Filter/Pipe API for data transformations
Unix File Descriptor Pipe I/O	fd_unix
Hashes	hash: Implementations of hash algorithms
BLAKE2b	blake2
BLAKE2s	blake2s
Checksums	checksum: Implementations of checksum algorithms
Adler32	adler32
CRC24	crc24
CRC32	crc32
Comb4P	comb4p
GOST 34.11	gost_3411
Keccak	keccak: Pre-standard version of SHA-3 originally proposed during NIST competition
MD4	md4
MD5	md5
Merkle-Damgård Helper	mdx_hash: Helper class for implementing Merkle-Damgård hashes
Parallel Hashes	par_hash: Base class for parallel hash functions
RIPEMD-160	rmd160
SHA-1	sha1
SHA-1 ARMv8	sha1_armv8: SHA-1 using ARMv8 crypto instructions
SHA-1 AVX2/BMI2	sha1_avx2: SHA-1 using AVX2/BMI2 instructions
SHA-1 SIMD	sha1_simd: SHA-1 using SIMD instructions
SHA-1 SIMD	sha1_x86: SHA-1 using SIMD instructions on x86
SHA-256 and SHA-224	sha2_32
SHA-256 ARMv8	sha2_32_armv8: SHA-256 using ARMv8 crypto instructions
SHA-256 using AVX2/BMI2	sha2_32_avx2: SHA-256 using AVX2/BMI2 instructions
SHA-256 using SIMD	sha2_32_simd: SHA-256 using SIMD instructions
SHA-256 SIMD	sha2_32_x86: SHA-256 using SIMD instructions on x86
SHA-512 and SHA-384	sha2_64
SHA-512 ARMv8	sha2_64_armv8: SHA-512 using ARMv8 crypto instructions
SHA-512 AVX2/BMI2	sha2_64_avx2: SHA-512 using AVX2/BMI2 instructions
SHA-512 AVX512/BMI2	sha2_64_avx512: SHA-512 using AVX512/BMI2 instructions
SHA-512 SHA-NI	sha2_64_x86: SHA-512 using x86 instructions
SHA-3	sha3
SHAKE	shake
Skein-512	skein
SM3	sm3
Streebog	streebog
Truncated Hashes	trunc_hash: Wrapper class to truncate the output of an underlying hash function
Whirlpool	whirlpool
Key Derivation Functions	kdf: Implementations of Key Derivation Functions
HKDF	hkdf
KDF1	kdf1
KDF1 (ISO 18033-2)	kdf1_iso18033
KDF2	kdf2
TLS 1.2 PRF	prf_tls: Implementation of the Pseudo-Random Function as used in TLS 1.2
PRF X9.42	prf_x942
NIST SP800-108	sp800_108
NIST SP800-56A	sp800_56a
NIST SP800-56C	sp800_56c
XMD	xmd: XMD KDF from RFC 9380
Keccak-permutation	keccak_perm
KECCAK-permutation BMI2	keccak_perm_bmi2: KECCAK-permutation for SHA-3-related functions using BMI2 instructions
Message Authentication Codes	mac: Implementations of Message Authentication Codes
Blake2B MAC	blake2mac
CMAC	cmac
GMAC	gmac
HMAC	hmac
KMAC	kmac
Poly1305	poly1305
SipHash	siphash
ANSI X9.19 MAC	x919_mac
Math	math: Mathematical helpers; mostly big integer math
Big Integer	bigint: Wrapper classes for handling big integer math
Big Integer (Low-Level)	mp: Low level big integer math algorithms
Number Theory	numbertheory: Number theoretical higher level algorithms for big integer math
Prime Order Curves	pcurves: Generalized elliptic curve arithmetic
PCurve brainpool256r1	pcurves_brainpool256r1: brainpool256r1
PCurve brainpool384r1	pcurves_brainpool384r1: brainpool384r1
PCurve brainpool512r1	pcurves_brainpool512r1: brainpool512r1
PCurve frp256v1	pcurves_frp256v1: frp256v1
PCurve generic	pcurves_generic
Prime Order Curves Implementation Helpers	pcurves_impl: Generalized elliptic curve arithmetic
PCurve numsp512d1	pcurves_numsp512d1: numsp512d1
PCurve secp192r1	pcurves_secp192r1: secp192r1
PCurve secp224r1	pcurves_secp224r1: secp224r1
PCurve secp256k1	pcurves_secp256k1: secp256k1
PCurve secp256r1	pcurves_secp256r1: secp256r1
PCurve secp384r1	pcurves_secp384r1: secp384r1
PCurve secp521r1	pcurves_secp521r1: secp521r1
PCurve sm2p256v1	pcurves_sm2p256v1: sm2p256v1
Miscellaneous	misc: Odds and ends: Algorithms and protocols that don't fit any of the other modules
Crypto Box	cryptobox: High-Level API for password-based encryption (deprecated)
FPE FE1	fpe_fe1: Format Preserving Encryption (FE1 scheme)
HOTP/TOTP	hotp: HMAC/Time based One Time Password implementations
NIST KeyWrap	nist_keywrap: Key Wrapping as described in NIST SP800-38F
RFC 3394 KeyWrap	rfc3394: Key Wrapping as described in RFC 3394
Roughtime	roughtime: Authenticated Time Synchronzation Protocol
SRP-6a	srp6: Secure Remote Password protocol - RFC 5054 compatible
Threshold Secret Sharing	tss: Implementation based on draft-mcgrew-tss-03
ZFEC	zfec: Forward error correction based on Vandermonde matrices
ZFEC SSE2	zfec_sse2: ZFEC using SSE2 instructions
ZFEC Vector Permutation	zfec_vperm: ZFEC using Vector Permutation Instructions
Block Cipher Modes	modes: Implementations of block cipher modes of operation
AEAD Modes	aead: Implementations of Authenticated Encryption Associated Data block cipher modes
CCM	ccm
ChaCha20Poly1305	chacha20poly1305
EAX	eax
GCM	gcm
OCB	ocb
SIV	siv
CBC	cbc
CFB	cfb
CBC Padding Methods	mode_pad
XTS	xts
Password Hashes	passhash: Implementations of password hashing algorithms
Argon2 Formatted	argon2fmt: Generates formatted Argon2 password hash outputs
BCrypt	bcrypt: BCrypt password hash function
Passhash 9	passhash9: Passhash 9 password hash function
Password Based Key Derivation Functions	pbkdf: Implementations of Password Based Key Derivation Functions
Argon2	argon2
Argon2 AVX2	argon2_avx2: Argon2 using AVX2 instructions
Argon2 SSSE3	argon2_ssse3: Argon2 using SSSE3 instructions
BCrypt	bcrypt_pbkdf
PBKDF2	pbkdf2
S2K	pgp_s2k
Scrypt	scrypt
Public Key Paddings	pk_pad: Implementations of public key padding schemes
OAEP	eme_oaep
PKCS #1 v1.5 encryption padding	eme_pkcs1
EME Raw Padding	eme_raw
Hash Function Identification	hash_id
MGF1	mgf1
Raw Hash Function	raw_hash: Hash Function Used For Signature Schemes
RSA signature padding schemes	sig_padding: Implementations of public key signature padding schemes
PKCS #1 v1.5 signature padding	emsa_pkcs1
PSS	emsa_pssr: PSS signature padding from PKCS1v2.0
EMSA Raw Padding	emsa_raw
X9.31	emsa_x931
ISO-9796-2	iso9796
Providers	prov: Adapters to external crypto providers
CommonCrypto	commoncrypto: Helpers and Utilities for calling CommonCrypto
PKCS #11	pkcs11: Wrapper classes to interact with PKCS #11 modules
TPM v1 Support (deprecated)	tpm: Wrappers and Utilites to interact with TPM v1
TPM2	tpm2: Wrappers and Utilites to interact with TPM2
TPM2 Crypto Backend	tpm2_crypto_backend: Implementation of the TPM2-TSS crypto callbacks
TPM2 ECC Adapter	tpm2_ecc: Support for ECC pairs hosted on TPM 2.0
TPM2 RSA Adapter	tpm2_rsa: Support for RSA key pairs hosted on TPM 2.0
PSK Database	psk_db: Interface for a generic pre-shared key database
Public Key Algorithms	pubkey: Implementations of public key schemes
Public Key Blinding	blinding: Helper for BigInt blinding
Classic McEliece	classic_mceliece
Curve448 Arithmetic	curve448: x448 and Ed448 Arithmetic
Ed448	ed448: Ed448 signature algorithm
X448	x448: X448 key agreement algorithm
Diffie-Hellman	dh
Dilithium (common)	dilithium_common: Base implementation of CRYSTALS-Dilithium
Dilithium/ML-DSA SHAKE-based XOF adapter	dilithium_shake
Dilithium Round 3	dilithium_round3
Dilithium	dilithium: as specified in CRYSTALS-Dilithium 3.1
Dilithium (AES)	dilithium_aes: as specified in CRYSTALS-Dilithium 3.1
Discrete Logarithm	dl_algo: Classes for discrete logarithm based schemes
DL Group	dl_group: Wrapper for discrete logarithm groups and named groups
DLIES	dlies
DSA	dsa
EC Group	ec_group: Wrapper for elliptic curve groups
Legacy EC Point type	legacy_ec_point: Deprecated EC arithmetic interfaces
ECC Key	ecc_key: Base class for elliptic curve cryptography keys
ECDH	ecdh
ECDSA	ecdsa
ECGDSA	ecgdsa
ECIES	ecies
ECKCDSA	eckcdsa
Ed25519	ed25519
ElGamal	elgamal
FrodoKEM	frodokem
FrodoKEM (AES)	frodokem_aes
FrodoKEM (common)	frodokem_common: Base implementation of FrodoKEM
GOST 34.10-2001	gost_3410
HSS-LMS	hss_lms
Hybrid KEM	hybrid_kem
KEX to KEM adapter	kex_to_kem_adapter: Basic KEX to KEM key transformation
Keypair	keypair: Helper functions for key pair and signature consistency checks
Kyber (common)	kyber_common: Base implementation of CRYSTALS-Kyber
Kyber Round 3 Encapsulation	kyber_round3: Kyber key encapsulation as specified in the Round 3 spec
Kyber	kyber
Kyber 90s	kyber_90s
McEliece	mce
ML-DSA	ml_dsa: Module Lattice Digital Signature Algorithm (FIPS 204)
ML-KEM	ml_kem: Module Lattice KEM
PBES2	pbes2
PEM	pem: Helpers and utilities for handling PEM containers
CRYSTALS	pqcrystals: Base utilities for CRYSTALS-Kyber/ML-KEM and CRYSTALS-Dilithium/ML-DSA. CRYptographic SuiTe for Algebraic LatticeS
RFC 6979	rfc6979: RFC 6979 Deterministic Nonce Generator
RSA	rsa
SLH-DSA (SHA-256)	slh_dsa_sha2
SLH-DSA (SHAKE)	slh_dsa_shake
SM2	sm2
SLH-DSA (common)	sphincsplus_common: Base implementation of Stateless Hash Function DSA
SLH-DSA/SPHINCS+ (SHA-256) Base	sphincsplus_sha2_base: Base module for SLH-DSA and SPHINCS+ with SHA-2
SLH-DSA/SPHINCS+ (SHAKE) Base	sphincsplus_shake_base: Base module for SLH-DSA and SPHINCS+ with SHAKE
SPHINCS+ (SHA-256)	sphincsplus_sha2
SPHINCS+ (SHAKE-256)	sphincsplus_shake
X25519	x25519
XMSS	xmss
Random Number Generators	rng: Implementations of Random Number Generators
Auto-Seeded RNG	auto_rng: Userspace RNG that automatically seeds using available entropy sources
ChaCha RNG	chacha_rng
ESDM RNG	esdm_rng: RNG based on ESDM - Entropy Source and DRNG Manager
HMAC DRBG	hmac_drbg: As defined in NIST SP800-90A
CPU Jitter Random Number Generator	jitter_rng
Processor RNG	processor_rng: Directly invokes a CPU specific instruction to generate random numbers
Stateful RNG	stateful_rng: Base class for RNGs that must keep an internal state
System RNG	system_rng: Wrapper around the system-provided standard RNG
Stream Ciphers	stream: Implementations of stream cipher algorithms
ChaCha20	chacha
ChaCha20 AVX2	chacha_avx2: ChaCha20 using AVX2 instructions
ChaCha20 AVX512	chacha_avx512: ChaCha20 using AVX512 instructions
ChaCha20 SIMD	chacha_simd32: ChaCha20 using SIMD instructions
Counter Mode	ctr: CTR-BE block cipher mode
OFB	ofb: OFB block cipher mode
RC4	rc4
Salsa20	salsa20
SHAKE-based XOFs	shake_cipher: SHAKE-128 and SHAKE-256 XOF presented as stream ciphers
Transport Layer Security	tls: Common functionality for TLS
TLS ASIO Stream	asio: Boost ASIO stream interface as a wrapper around the TLS implementation
SQL Session Manager	sessions_sql: TLS Session Manager based on an SQL database
SQLite Session Manager	sessions_sqlite3: TLS Session Manager based on an SQLite database
TLS 1.2	tls12: TLS 1.2 protocol implementation
TLS 1.2 CBC AEAD	tls_cbc: CBC + HMAC AEAD mode of operation for TLS 1.2
TLS 1.2 Null cipher	tls_null: Null cipher + HMAC AEAD mode of operation for TLS 1.2
TLS 1.3	tls13: TLS 1.3 protocol implementation
TLS 1.3 (PQC)	tls13_pqc: Hybrid Key Exchange for TLS 1.3 with Post-Quantum Algorithms
Utilities	utils: Various utility functions and types
Bitvector utility	bitvector
Boost	boost
CPUID	cpuid: Handle runtime feature detection of the current CPU
CPUID for Aarch64	cpuid_aarch64
CPUID for ARMv7	cpuid_arm32
CPUID for LoongArch64	cpuid_loongarch64
CPUID for POWER/PowerPC	cpuid_ppc
CPUID for RISCV64	cpuid_riscv64
CPUID for x86	cpuid_x86
Dynamic Loader	dyn_load: Helper class to represent a dynamically loaded library
GHASH	ghash
GHASH SIMD	ghash_cpu: GHASH using SIMD instructions
GHASH Vector Permutations	ghash_vperm: GHASH using Vector Permutation instructions
HTTP	http_util
Locking Allocator	locking_allocator: STL allocator using mlock to lock memory
Memory Pool	mem_pool
Operating System Utils	os_utils: Interfaces for accessing OS functionality
Polynomial Doubling	poly_dbl
SIMD	simd: Wrappers for SIMD operations
SIMD 2x64	simd_2x64: Lightweight wrappers for SIMD 2x64
SIMD 4x32	simd_4x32: Lightweight wrappers for SIMD 4x32
SIMD 4x64	simd_4x64: Lightweight wrappers for SIMD 4x64
SIMD 8x64	simd_8x64: Lightweight wrappers for SIMD 8x64
AVX2	simd_avx2: Helpers for working with AVX2 instructions
AVX512	simd_avx512: Helpers for working with AVX512 instructions
Socket	socket
SQLite 3	sqlite3
Thread Utilities	thread_utils
Tree Hash	tree_hash: Generic implementation of Merkle Tree Hashing
UUID	uuid
X.509	x509: Handles X.509 certificates and their validation
File Certificate Store	certstor_flatfile: Certificate trust store based on a flat file containing PEM-encoded trusted certificates
SQL Certificate Store	certstor_sql: Certificate trust store based on an SQL database
SQLite Certificate Store	certstor_sqlite3: Certificate trust store based on an SQLite database
System Certificate Store	certstor_system: Certificate trust store backed by the system's trust store
macOS Certificate Store	certstor_system_macos: Adapter to access macOS' system trust store
Windows Certificate Store	certstor_system_windows: Adapter to access Windows' system trust store
eXtendable Output Function	xof: Implementations of XOFs
CRYSTALS XOF	aes_crystals_xof: XOF used in Kyber 90s and Dilithium AES
cSHAKE XOF	cshake_xof
SHAKE XOF	shake_xof