Signum – Kotlin Multiplatform Cryptography and PKI Library
An OSS KMP crypto + PKI library with a comprehensive ASN.1 engine. Android and iOS targets come with hardware-backed crypto + key storage, and native biometric auth.
Signum – Kotlin Multiplatform Cryptography and PKI Library launched on April 9, 2025 with 10 votes, #3,208 of 7,818 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 1 year on.
In plain words
Signum is an open-source cryptography and public key infrastructure library built for Kotlin Multiplatform development. It provides comprehensive ASN.1 support for handling structured data formats. On Android and iOS, it integrates hardware-backed cryptographic operations and secure key storage, along with native biometric authentication capabilities. The library is designed for developers who need cross-platform security features with platform-specific hardware acceleration.
written from the facts on this page · September 2026
From the sources
Kotlin Multiplatform Crypto/PKI/ASN.1 Library with Attestation and Hardware-Backed Crypto Support on Mobile - a-sit-plus/signum
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