The principles, means, and methods for data transformation to ensure confidentiality and authenticity is known as Cryptography. It conceals the data from unauthorized access and verifies its integrity when necessary.
A uniform cryptography policy is essential for protecting highly confidential organizational data, preventing misuse, and ensuring its safety and integrity from illegal use.
Cryptography Policy Sample
Purpose
[Organization’s Name] places the integrity, confidentiality, and authenticity of information at its heart. Along similar lines, the cryptography policy ensures that data is protected from unauthorized inception and aligns every employee with the organization’s security and data governance objectives.
Objective
The key objectives of this policy include:
- Safeguarding the confidentiality and integrity of assets, services, and data registered under [Organization’s Name].
- Securely storing information to avoid unauthorized access or accidental loss.
- Ensuring smooth, secure data transfer among software devices.
- Aligning with the key themes of Cyber Resilience Framework: Identify, Protect, Detect, Respond, and Recover.
- Establishing encryption standards for digital assets.
- Assuring protection of sensitive information to senior management, clients, partners, and employees.
Cryptographic roles and responsibilities
- All employees, partners, and support staff are responsible for adhering to the policy guidelines and ensuring information protection at all levels.
- The Internal Committee established under the policy is responsible for ensuring smooth implementation of this policy.
- Every departmental head and team manager will ensure teams adhere to basic guidelines and mitigate any risk from external sources.
- The Internal Governance Committee (IGC) oversees the management of common threats and will present an annual report of their work at the yearly conferences.
- The Internal Committee is also responsible for conducting quarterly seminars, advising on risk treatment efforts, and ensuring consistent policy implementation.
- The Information Security Manager is responsible for reviewing and incorporating improvements with the latest trends in the policy.
Cryptography usage
Cryptographic keys are crucial for accessing encrypted data and systems. Our organization uses the following approaches to manage these keys:
- Storing cryptographic keys in MS Azure Active Directory, with access restricted to authorized staff.
- Implementing safety protocols for authorization requests.
- Ensuring cryptographic key protection from theft, loss, and unauthorized access throughout their lifecycle.
- Physically protecting equipment generating, storing, and archiving keys with appropriate security controls.
- Here are the list of risks and threats:
Commonly identified threats
| Threat No. | Commonly Identified Threats |
| A1 | Unauthorized access by outsider |
| A2 | Unauthorized access by insider |
| A3 | Theft of information or data by insider |
| A4 | Theft of information or data by outsider |
| A5 | User error or unintentional change of data |
| A6 | Sharing of accounts by authorized users |
| A7 | Theft of information or data by hackers |
| A8 | Communications intercepted |
| A9 | Introduction of Malware |
| A10 | Phishing/Social Engineering |
| A11 | Breach of Privacy |
| A12 | Accidentally misrouting information or data |
| A13 | Inadequate audit report |
| A14 | Network connectivity failure |
| A15 | Infrastructure technical failure |
| A16 | Environmental failure |
| A17 | System software failure |
| A18 | End of life of a key |
| A19 | Supply chain cyber attack |
| A20 | Act of Terrorism |
Digital signatures
A digital signature is an electronic signature used to authenticate the message’s sender and to ensure the message remains unchanged.
Our organization mandates the following rules under the Digital Signature Policy:
- Adherence to criteria mentioned on the website for acquiring digital signatures.
- Use digital signatures only in official documents and secure environments.
- Quarterly policy reviews for legal compliance.
- Strict actions, including termination, for unauthorized access.
Encryption standards
The Cryptographic keys must be handled with the utmost security, and [Organization’s Name] takes the following steps:
- Securely storing cryptographic keys in MS Azure AD, accessible only to authorized personnel.
- Pre-defined procedures for granting temporary access permissions, recorded for accountability.
- Strict penalties for incidents of modification, loss, tampering, or unauthorized access.
- Physical storage of key-generating equipment in secure environments.
- Revoking compromised keys and generating new ones.
- Installing TPM chips in laptops and desktops and six-character passwords for mobiles.
- Allowing only password-protected Portable Storage Devices.
- Using MS Intune to implement and manage encryption standards.
- Using the Organization’s SharePoint Directory while sharing important business information via emails.
Appendix
Table 1 – Definitions
| Term | Definition |
| Application encryption | Application-level encryption of files. |
| Cryptography | Technique of protecting data by converting it into secure format. |
| Cryptographic keys | A key used to unlock or access encrypted data. |
| Encryption algorithms | Uses encryption key to convert data to plaintext. |
Table 2 – Key roles and responsibilities
| Role | Responsibility |
| Chief Digital and Information Officer (CDIO) | One who approves of any exemptions to the policy. |
| Digital and Information Officer (DIO) | One who implements and notifies any changes to the policy. |
| Chief Information Security Officer (CISO) | One who develops, improves, monitors, and reviews the exemptions to the policy. |
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