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Transmission Encryption Framework

The organization shall establish a data-in-transit encryption framework that defines the structures, processes, and practices for encrypting data transmitted across networks and communication channels. The framework shall articulate how secure communication requirements are defined, how encryption protocols are managed, and how transmission security is governed.

Requirement ID
CRY-003-R001
Parent Control
CRY-003
Domain Code
CRY

Requirement Details & Guidance

CRY-003-R001 · CRY-003
Why This Requirement Exists

Establishes a consistent approach for protecting data while moving across networks and between systems.

Implementation Guidance

Define scope, required protocols, certificate dependencies, trust models, secure-channel requirements, monitoring, exceptions, and review.

Practical Application & Audit Readiness

CRY-003-R001 · Field Guidance

Business Examples

    Common Audit Findings

      Common Mistakes

        Best Practices & Ownership

        CRY-003 · Recommended Approach

        Recommended Practices

          Typical Owner

          Cross-Mapped Regulatory Frameworks

          Harmonized Control Mappings
          FRAMEWORK CODE FRAMEWORK NAME & DETAILS FAMILY / CATEGORY VERSION ACTION
          CIS-V8 CIS Controls CIS Controls are a prioritized set of cybersecurit... Clause: Control 03 – Data Protection: 3.10 – Encrypt Sensitive Data in Transit
          CIS
          Best Practice
          		 vv8 View →
          COBIT2019 COBIT COBIT is an enterprise governance and management f... Clause: 4.2 – Align, Plan and Organize (APO) > APO13 – Managed Security > APO13.01 – Establish and maintain an information security management system.
          COBIT
          Governance Framework
          		 v2019 View →
          DORA Digital Operational Resilience Act The EU Digital Operational Resilience Act establis... Clause: Article 9(4)(d) – Strong authentication, cryptographic keys and encryption Article 9(2) – ICT security policies, procedures, protocols and tools for resilience and data security
          EU
          Regulation
          		 vCurrent View →
          GDPR General Data Protection Regulation (GDPR) The General Data Protection Regulation is a bindin... Clause: Article 32(1)(a) – Pseudonymisation and encryption
          EU
          Regulation
          		 vCurrent View →
          HIPAA Health Insurance Portability and Accountability Act HIPAA is a U.S. federal law supported by implement... Clause: § 164.312(b) Standard: Encryption and decryption
          US
          Law
          		 vCurrent View →
          IRDAI IRDAI Information & Cyber Security Guidelines IRDAI information and cyber-security requirements... Clause: §2.12-3.1 – Use of Cryptography
          India
          Guideline
          		 vLatest View →
          ISO27002 ISO/IEC 27002 ISO/IEC 27002 is a guidance standard containing a... Clause: 5.14 – Information transfer; 8.24 – Use of cryptography
          ISO
          Standard
          		 v2022 View →
          NIS2 NIS2 Directive The NIS2 Directive establishes EU-wide cybersecuri... Clause: Article 21(2)(h) – Policies and procedures regarding cryptography and, where appropriate, encryption
          EU
          Directive
          		 vCurrent View →
          NIST-CSF NIST Cybersecurity Framework (CSF) The NIST Cybersecurity Framework provides high-lev... Clause: PR.DS – Data Security | PR.DS-02 – The confidentiality, integrity, and availability of data-in-transit are protected PR.DS – Data Security | PR.DS-10 – The confidentiality, integrity, and availability of data-in-use are protected PR.DS – Data Security | PR.DS-01 – The confidentiality, integrity, and availability of data-at-rest are protected
          NIST
          Framework
          		 v2 View →
          NIST80053 NIST SP 800-53 NIST SP 800-53 Rev. 5 presents control families, i... Clause: 3.18 – SYSTEM AND COMMUNICATIONS PROTECTION; SC-8 – TRANSMISSION CONFIDENTIALITY AND INTEGRITY
          NIST
          Control Catalog
          		 vRev. 5 View →
          NPCI-ISR NPCI Information Security Requirements NPCI information-security requirements define cont... Clause: Security Measures / Controls; Data Security – Encryption
          India
          Standard
          		 vLatest View →
          PCI-DSS PCI DSS PCI DSS is an industry security standard maintaine... Clause: 4.2.1 – Strong cryptography and security protocols; 4.2.2 – PAN is secured with strong cryptography
          PCI
          Standard
          		 v4 View →
          RBI-CSF RBI Cyber Security Framework / Master Directions RBI cyber-security requirements and directions set... Clause: 1) Inventory Management of Business IT Assets – 1.3 Protection of data/information across storage, transmission, processing and access, inside/outside the bank; 8) User Access Control / Management – 8.1 Secure access with protection of data at rest and in transit
          India
          Regulation
          		 vLatest View →
          SEBI-CSCRF SEBI Cyber Security & Cyber Resilience Framework SEBI’s Cybersecurity and Cyber Resilience Framewor... Clause: 3.3 PR.DS: Data Security
          India
          Regulation
          		 vLatest View →
          SOC2 SOC 2 Trust Services Criteria SOC 2 is an independent examination and reporting... Clause: CC6.7 – Logical and Physical Access Controls – The entity restricts the transmission, movement, and removal of information to authorized internal and external users and processes, and protects it during transmission, movement, or removal to meet the entity’s objectives. CC6.1 – Logical and Physical Access Controls – The entity implements logical access security software, infrastructure, and architectures over protected information assets to protect them from security events to meet the entity's objectives.
          AICPA
          Audit Framework
          		 vLatest View →

          Parent Domain Context

          Governance Domain Baseline
          Domain Name:
          Cryptography & Key Management (CRY)
          Purpose:
          To manage the use of encryption and cryptographic keys to protect data.
          Scope:
          Enterprise
          View

          Parent Control Context

          Control Baseline
          Control Name:
          Data-in-Transit Encryption (CRY-003)
          Summary:
          Establishes encryption for data in transit including secure communication requirements, protocol management, certificate validation, channel management, and ongoing monitoring.
          Business Description:
          Establish and maintain encryption controls to protect information transmitted across internal, external, public, and private communication networks.
          View