DevSec Pro: Offline Security
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About this app
π‘οΈ DevSec Pro is the zero-permission, client-side cryptographic workbench engineered for software engineers, penetration testers, and backend architects who demand absolute privacy.
Built on a zero-telemetry architecture, DevSec Pro operates completely air-gapped from the network. Your sensitive production secrets, cryptographic tokens, and authentication payloads never touch external servers or the cloud.
π 100% CLIENT-SIDE AIR-GAP:
β’ π« Zero Permissions: No internet access (android.permission.INTERNET is completely stripped).
β’ π‘οΈ Zero Tracking: No ads, no analytics, no third-party SDKs, and zero crash trackers.
β’ β‘ Local Execution: All cryptographic operations execute within your device's protected memory buffer.
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β¨ EXCLUSIVE PRO CAPABILITIES
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1. π OFFLINE SIGNATURE VERIFICATION
Inspect, decode, and cryptographically verify JSON Web Tokens (JWT) directly on-device:
β’ Symmetric Algorithms: Verify HMAC signatures (HS256, HS384, HS512) with raw secret keys.
β’ Asymmetric Algorithms: Verify digital signatures using standard PEM public keys (RS256, RS384, RS512, ES256, ES384, ES512).
β’ Full claims dissection: Real-time validation for iat, exp, and nbf timestamps with human-readable epoch conversions.
2. ποΈ AES-256-GCM ENCRYPTED VAULT
A hardened local safe for sensitive development environment variables and infrastructure keys:
β’ Military-Grade Encryption: Authenticated AES-256-GCM cipher with unique per-entry initialization vectors (IV).
β’ High-Entropy KDF: Master password hardened via PBKDF2-HMAC-SHA256 with high iteration counts and cryptographic salt.
β’ Hardware-Isolated Storage: Store production API tokens, database connection URIs, and server credentials securely offline.
3. β‘ UNLIMITED BULK TOKEN GENERATION
Generate enterprise-grade unique identifiers and random secrets with zero limits:
β’ UUID v4, NanoID, and cryptographically secure random Hex bytes.
β’ Batch Generation: Instantly create and export batches of 100 to 1,000 keys in a single tapβno cooldowns, no rewarded passes, no timeouts.
ββββββββββββββββββββββββββ
π οΈ CORE CRYPTO & DECODER WORKBENCH
ββββββββββββββββββββββββββ
β’ π Multi-Format Smart Decoder: Bidirectional encoding/decoding for Base64, Base64URL, Hexadecimal (Base16), URL percent-encoding, and HTML entities.
β’ β‘ Cryptographic Hashes & HMAC: Compute MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512, and keyed HMAC digests.
β’ π X.509 Certificate Inspector: Parse PEM public keys (RSA/EC) and X.509 certificates to extract Issuer DNs, subject info, and validity windows.
β’ β±οΈ Clipboard Auto-Wipe: Automatic memory sanitation cleanses sensitive copied tokens from your Android clipboard after 60 seconds.
Clean, high-performance architecture built for professional developers who refuse to compromise on security.
Developed by LKPixel.
Support & Security Contact: contact@lkpixel.com
Built on a zero-telemetry architecture, DevSec Pro operates completely air-gapped from the network. Your sensitive production secrets, cryptographic tokens, and authentication payloads never touch external servers or the cloud.
π 100% CLIENT-SIDE AIR-GAP:
β’ π« Zero Permissions: No internet access (android.permission.INTERNET is completely stripped).
β’ π‘οΈ Zero Tracking: No ads, no analytics, no third-party SDKs, and zero crash trackers.
β’ β‘ Local Execution: All cryptographic operations execute within your device's protected memory buffer.
ββββββββββββββββββββββββββ
β¨ EXCLUSIVE PRO CAPABILITIES
ββββββββββββββββββββββββββ
1. π OFFLINE SIGNATURE VERIFICATION
Inspect, decode, and cryptographically verify JSON Web Tokens (JWT) directly on-device:
β’ Symmetric Algorithms: Verify HMAC signatures (HS256, HS384, HS512) with raw secret keys.
β’ Asymmetric Algorithms: Verify digital signatures using standard PEM public keys (RS256, RS384, RS512, ES256, ES384, ES512).
β’ Full claims dissection: Real-time validation for iat, exp, and nbf timestamps with human-readable epoch conversions.
2. ποΈ AES-256-GCM ENCRYPTED VAULT
A hardened local safe for sensitive development environment variables and infrastructure keys:
β’ Military-Grade Encryption: Authenticated AES-256-GCM cipher with unique per-entry initialization vectors (IV).
β’ High-Entropy KDF: Master password hardened via PBKDF2-HMAC-SHA256 with high iteration counts and cryptographic salt.
β’ Hardware-Isolated Storage: Store production API tokens, database connection URIs, and server credentials securely offline.
3. β‘ UNLIMITED BULK TOKEN GENERATION
Generate enterprise-grade unique identifiers and random secrets with zero limits:
β’ UUID v4, NanoID, and cryptographically secure random Hex bytes.
β’ Batch Generation: Instantly create and export batches of 100 to 1,000 keys in a single tapβno cooldowns, no rewarded passes, no timeouts.
ββββββββββββββββββββββββββ
π οΈ CORE CRYPTO & DECODER WORKBENCH
ββββββββββββββββββββββββββ
β’ π Multi-Format Smart Decoder: Bidirectional encoding/decoding for Base64, Base64URL, Hexadecimal (Base16), URL percent-encoding, and HTML entities.
β’ β‘ Cryptographic Hashes & HMAC: Compute MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512, and keyed HMAC digests.
β’ π X.509 Certificate Inspector: Parse PEM public keys (RSA/EC) and X.509 certificates to extract Issuer DNs, subject info, and validity windows.
β’ β±οΈ Clipboard Auto-Wipe: Automatic memory sanitation cleanses sensitive copied tokens from your Android clipboard after 60 seconds.
Clean, high-performance architecture built for professional developers who refuse to compromise on security.
Developed by LKPixel.
Support & Security Contact: contact@lkpixel.com
Zero permissions, 100% offline: JWT verification, AES-256 vault & crypto suite
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Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- No data shared with third partiesLearn more about how developers declare sharing
- No data collectedLearn more about how developers declare collection
Whatβs new
Welcome to DevSec Pro v1.0.1:
β’ Zero-Permission architecture: No network access requested.
β’ Offline JWT Signature Verification (HS256, RS256, ES256).
β’ Hardware-isolated AES-256-GCM encrypted secret vault.
β’ Unlimited bulk generation & exports for UUID v4, NanoID, Hex.
β’ Smart Decoder, Cryptographic Hashes & X.509 Inspector.
β’ Zero-Permission architecture: No network access requested.
β’ Offline JWT Signature Verification (HS256, RS256, ES256).
β’ Hardware-isolated AES-256-GCM encrypted secret vault.
β’ Unlimited bulk generation & exports for UUID v4, NanoID, Hex.
β’ Smart Decoder, Cryptographic Hashes & X.509 Inspector.
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About the developer
R.M. Dulanka Sheshan Rathnayaka
lkpixel.developer@gmail.com
647, Magulagama
Padeniya
Wariyapola 60461
Sri Lanka
