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OWLCrypto

OWLCrypto is a self-developed and verified cryptographic module library for data security with a cryptographic module verified by the National Intelligence Service (KCMVP, Korea Cryptographic Module Validation Program) corresponding to the security level 1.

OWLCrypto V1.0

Verification Number CM-241-2028.12 Module Type S/W
Cryptographic Module Name OWLCrypto V1.0 Developer (주)아울시스템즈
Verification Date 2023-12-22 Effective Date 2028-12-22
Verification Criteria KS X ISO/IEC 19790:2015, KS X ISO/IEC 24759:2015
Security Level Whole Standard Sicherheitsstufe 1
Itemized Level Cryptographic Module Specifications 1st Grade
Cryptographic Module Port and Interface 1st Grade
Roles, Services and Authentication 1st Grade
Software/Firmware
Security		 1st Grade
Operating Environment 1st Grade
Physical Security Not applicable
Non-invasive security Not applicable
Management of important security parameters 1st Grade
Self Test 1st Grade
Life Cycle Assurance 1st Grade
Response to other attacks 1st Grade
Note A separate matching test is required when using a library-type cryptographic module in an information protection product.

Main Features of OWLCrypto

Supports various algorithms according to encryption algorithm verification criteria (multipurpose encryption algorithm installed) Domestic and international standard encryption algorithm support

Classification Encryption algorithm
to be verified
OWLCryptoV1_0.dall, libOWLCryptoV1_0.so
Block encryption ARIA
Key length: 128/192/256bit
Hash: SHA-256
Standard document: KS X ISO/IEC 18031 (2018)
Hash fuction SHA-256,512
Standard document: KS X ISOIEC10118-3:2001
Message
authentication code		 HMAC
Hash: SHA-256,512
Standard document: KS X ISO/IEC 9797-2
Asymmetric key cipher RSAES-OAEP
Public key length: 2048/3072bit
Hash: SHA-256
Standard document: KS X ISO/IEC 18033-2 (2017)
Digital signature KCDSA
Public key length: 2048bit
Hash: SHA-256
Standard document: KS X ISO/IEC 14888-3, TTAK.KO-12.0001/R4
Nonce generator Hash_DRBG
Prediction tolerance not supported, additional input not supported
Hash: SHA-256
Standard document: KS X ISO/IEC 18031 (2018)

Various multi-platform support

  • 01

    Compatible with various multi-platforms such as Window/Linux/Unix

  • 02

    Easy performance and portability as library product based on C language

  • 03

    Easy interworking with various languages such as C/C, C#, JAVA, and Python

  • 04

    Application of memory protection techniques (ASLR, DEP, GS, ASCII-Armor, etc.) for security mechanism implementation

Strong points of OWLCrypto

  • High security
    • Use one-time results using the entropy generation API
    • Using a nonce generator (Hash_DRBG) to be verified
    • Create Interval Counter (reseed Interval) values up to 100,000 times
  • Self test
    • A self-test is executed before the encryption module is executed, and if there is a problem with the self-test and it fails, the service to be verified cannot be used.
  • Integrity verification of encryption module
    • Testing applied to all software components to determine whether the software is forged or tampered with inside the encryption boundary
    • Digital signature technique using KCDSA 2048 (SHA256) algorithm