# Care4Sign Safetec Limited - Comprehensive Technical & Enterprise Documentation

> Complete technical architecture, regulatory standards, product catalog, and API integration guidelines for Care4Sign Safetec Limited — an officially Licensed Certifying Authority in India under CCA (MeitY, Government of India).

## 1. Statutory Identity & Accreditation
- **Company Legal Name**: Care4Sign Safetec Limited
- **Status**: Licensed Certifying Authority (CA)
- **Accreditation**: Authorized by the Controller of Certifying Authorities (CCA), Ministry of Electronics & IT (MeitY), Government of India.
- **Governing Law**: Information Technology Act 2000 (IT Act 2000), Sections 3, 5, 14, 15, and 16.
- **Evidence Admissibility**: Section 65B of the Indian Evidence Act, 1872.
- **Corporate Identity Number**: U72900KA2021PLC153672
- **Data Center & PKI Infrastructure**: WebTrust certified, ISO 27001 certified, FIPS 140-2/140-3 Level 3 compliant HSM infrastructure.
- **CCA Verification**: https://cca.gov.in/licensed_ca.html

## 2. Product Catalog & Operational Guide

### Class 3 Digital Signature Certificate (DSC)
- **URL**: https://care4sign.com/digital-signature-certificate
- **Class**: Class 3 (Highest assurance level under Indian PKI, mandatory since Class 2 discontinuation).
- **Issuance Variants**:
  - **Individual Signing**: Digital signature for individual directors, taxpayers, professionals.
  - **Individual Combo (Signing + Encryption)**: Required for e-tendering where commercial bid envelopes (BoQ) are encrypted.
  - **Organisation Signing**: Digital signature issued in the name of an employee/director linked with company name and GSTIN/CIN.
  - **Organisation Combo (Signing + Encryption)**: Required for corporate vendors bidding on GeM, CPPP, Indian Railways (IREPS), and state e-procurement.
- **Verification Protocol**: Paperless Aadhaar eKYC / PAN eKYC + 10-second biometric/video recording. Approval SLA: 15 minutes.
- **Validity Options**: 1 Year, 2 Years, 3 Years.

### DSC for Government Portals
- **Income Tax Portal (ITR 2.0)**: https://care4sign.com/dsc-for-income-tax
  - Mandatory for Section 44AB Tax Audit reports (Form 3CA-3CD, 3CB-3CD).
  - Mandatory for companies (ITR-6) and LLPs/Partnerships (ITR-5).
  - Pre-configured for Income Tax emBridge utility and Java runtimes.
- **Ministry of Corporate Affairs (MCA V3)**: https://care4sign.com/dsc-for-mca
  - DIN e-KYC (DIR-3 KYC Web & e-Form) under Rule 12A.
  - SPICe+ (INC-32) company incorporation and AGILE-PRO-S.
  - Annual filings: AOC-4 (Financial Statements), MGT-7/7A (Annual Returns).
  - Works with MCA emBridge on localhost ports 8080/8081.
- **Goods and Services Tax (GST)**: https://care4sign.com/dsc-for-gst
  - Mandated under Rule 26(1) of CGST Rules, 2017 for all corporate taxpayers.
  - GSTR-1, GSTR-3B, GSTR-9, GSTR-9C filings and GST refund claims.
  - Fully compatible with GST emSigner WebSocket service.
- **e-Tendering, GeM & CPPP**: https://care4sign.com/dsc-for-etendering
  - Central Public Procurement Portal (CPPP - eprocure.gov.in), Government e-Marketplace (GeM), Indian Railways e-Procurement System (IREPS), and Defence/MES tenders.
  - Dual-key setup: Signing certificate signs the technical bid; Encryption certificate encrypts the commercial BoQ until official tender opening.
- **DGFT (Directorate General of Foreign Trade)**: https://care4sign.com/dgft-digital-signature
  - Embedded 10-digit Import Export Code (IEC) and branch code in certificate extension.
  - Required for annual IEC profile validation (FTP 2023), Advance Authorisation, EPCG licenses, and RoDTEP claims.

### Enterprise Document Signer Certificates
- **URL**: https://care4sign.com/document-signer-certificate
- **Function**: Server-based unattended automated digital signing for high-volume enterprise document workflows.
- **Use Cases**: Bulk GST e-invoices (CGST Rule 46), Form 16 / 16A salary and TDS certificates, banking statements, policy schedules, utility bills, and university marksheets.
- **Integration**: Supports PKCS#11, Microsoft CAPI/CNG, REST APIs, Java, .NET, SAP NetWeaver, and HSM integration.

### PKI USB Tokens
- **URL**: https://care4sign.com/pki-tokens
- **Standard**: FIPS 140-3 Level 3 (mandated by the CCA).
- **Supported Models**: mToken 140-3, HYP2003 ePass2003, ProxKey, InnaIT PK32XX.
- **Drivers & Middleware**: Available at https://care4sign.com/downloads and https://care4sign.com/repository.

### DSC Renewal Online
- **URL**: https://care4sign.com/renew-dsc
- **Process**: Fully paperless 5-minute renewal allowing reuse of existing FIPS-compliant cryptographic tokens without purchasing new hardware.

### Fast-Track Online DSC Application (15 Minutes)
- **URL**: https://care4sign.com/apply-dsc-online
- **Issuance**: Instant paperless Aadhaar eKYC or PAN eKYC with 10-second biometric video verification.
- **Coverage**: Individual & Organization Class 3 Signing and Combo DSC approved in under 15 minutes.

### Enterprise PKI Solutions & Trust Services
- **URL**: https://care4sign.com/services
- **PKI Architecture**: Custom dedicated Certificate Authority (CA) hierarchies, Private PKI, and automated certificate lifecycle management.
- **Time Stamping Authority (TSA)**: RFC 3161 compliant cryptographic time-stamping ensuring non-repudiation, proof of existence, and long-term validation (LTV) for e-signatures and legal contracts.
- **eSign API & Gateway**: High-throughput Aadhaar eSign and biometric authentication APIs for fintechs, banks, insurance platforms, and enterprise ERP integrations.

### Hardware Security Modules (HSM)
- **URL**: https://care4sign.com/hardware-security-module
- **Compliance**: FIPS 140-2 / FIPS 140-3 Level 3 tamper-responsive hardware appliances.
- **Form Factors**: Network HSMs and high-speed PCIe cryptographic accelerators for enterprise document signing, root keys, and payment gateways.

### SSL / TLS Certificates
- **URL**: https://care4sign.com/ssl-certificates
- **Variants**: Domain Validated (DV), Organisation Validated (OV), Extended Validation (EV), and Wildcard SSL/TLS certificates supporting SHA-256 and 2048-bit RSA encryption.

### Transparent Direct CA Pricing
- **URL**: https://care4sign.com/pricing
- **Rates**: Direct CA transparent pricing for 1-Year, 2-Year, and 3-Year Class 3 DSCs with zero middleman fees.

### Partner Franchise Program
- **URL**: https://care4sign.com/become-a-partner
- **Model**: Direct CA partner program for Chartered Accountants, Tax Consultants, CSC VLEs, and Cyber Cafes offering up to 50% margins, direct CA issuing portal, and bulk token logistics.

## 3. Official Corporate Contact
- **Head Office**: 1st Floor, Office No. 1, CNR Complex, Vinayaka Layout, Ananthapura Gate, Yelahanka New Town, Bengaluru, Karnataka 560064
- **Sales & General Inquiries**: +91-9742188449 | info@care4sign.com
- **Technical Support**: +91-8431238998 | support@care4sign.com
- **Application Portal**: https://dsc.care4sign.com/Care4Sign_V2/