https://www.fovir.fyi/Recent content on Fovir's HomeHugo -- gohugo.ioen-ushttps://www.fovir.fyi/knowledge-base/cryptography/des/Thu, 21 May 2026 00:00:00 +0800https://www.fovir.fyi/knowledge-base/cryptography/des/ Introduction of DES encryption.https://www.fovir.fyi/knowledge-base/cryptography/block-cipher/Thu, 21 May 2026 00:00:00 +0800https://www.fovir.fyi/knowledge-base/cryptography/block-cipher/ Note of block cipher.https://www.fovir.fyi/knowledge-base/cryptography/pseudorandom-function-and-permutation/Thu, 21 May 2026 00:00:00 +0800https://www.fovir.fyi/knowledge-base/cryptography/pseudorandom-function-and-permutation/ Concept of pseudorandom function and permutation (PRF and PRP).https://www.fovir.fyi/knowledge-base/cryptography/stream-cipher/Thu, 07 May 2026 00:00:00 +0800https://www.fovir.fyi/knowledge-base/cryptography/stream-cipher/ Introduction of stream cipher.https://www.fovir.fyi/knowledge-base/cryptography/pseudorandomness/Thu, 07 May 2026 00:00:00 +0800https://www.fovir.fyi/knowledge-base/cryptography/pseudorandomness/ Introduction of pseudorandomness.https://www.fovir.fyi/knowledge-base/cryptography/computational-security/Sun, 03 May 2026 00:00:00 +0800https://www.fovir.fyi/knowledge-base/cryptography/computational-security/ Note of computational security.https://www.fovir.fyi/knowledge-base/cryptography/perfectly-secret-encryption/Sun, 03 May 2026 00:00:00 +0800https://www.fovir.fyi/knowledge-base/cryptography/perfectly-secret-encryption/ Introduction of perfectly secret encryption.https://www.fovir.fyi/knowledge-base/cryptography/principles-of-modern-cryptography/Sun, 03 May 2026 00:00:00 +0800https://www.fovir.fyi/knowledge-base/cryptography/principles-of-modern-cryptography/ Note of principles of modern cryptography.https://www.fovir.fyi/knowledge-base/cryptography/substitution-cipher/Fri, 01 May 2026 00:00:00 +0800https://www.fovir.fyi/knowledge-base/cryptography/substitution-cipher/ Introduction of substitution ciphers.https://www.fovir.fyi/knowledge-base/cryptography/classical-cryptography/Fri, 01 May 2026 00:00:00 +0800https://www.fovir.fyi/knowledge-base/cryptography/classical-cryptography/ Introduction of classical cryptography.https://www.fovir.fyi/knowledge-base/cryptography/introduction/Fri, 01 May 2026 00:00:00 +0800https://www.fovir.fyi/knowledge-base/cryptography/introduction/ Introduction of cryptogarphy.https://www.fovir.fyi/knowledge-base/database/data-validation-techniques/Wed, 07 Jan 2026 00:00:00 +0800https://www.fovir.fyi/knowledge-base/database/data-validation-techniques/ Note of data validation techniques.https://www.fovir.fyi/knowledge-base/computer-composition/memory-organization/Tue, 06 Jan 2026 00:00:00 +0800https://www.fovir.fyi/knowledge-base/computer-composition/memory-organization/ Note of memory organization.https://www.fovir.fyi/knowledge-base/computer-composition/instruction-format/Mon, 05 Jan 2026 00:00:00 +0800https://www.fovir.fyi/knowledge-base/computer-composition/instruction-format/ Note of instruction format.https://www.fovir.fyi/knowledge-base/computer-composition/instruction-set/Sun, 04 Jan 2026 00:00:00 +0800https://www.fovir.fyi/knowledge-base/computer-composition/instruction-set/ Note if instruction set.https://www.fovir.fyi/knowledge-base/computer-composition/asynchronous-data-transmission/Sun, 04 Jan 2026 00:00:00 +0800https://www.fovir.fyi/knowledge-base/computer-composition/asynchronous-data-transmission/ Note of asynchronous data transmission.https://www.fovir.fyi/knowledge-base/computer-composition/addressing-mode/Sun, 04 Jan 2026 00:00:00 +0800https://www.fovir.fyi/knowledge-base/computer-composition/addressing-mode/ Note of addressing mode.https://www.fovir.fyi/knowledge-base/computer-composition/stack-organization/Sat, 03 Jan 2026 00:00:00 +0800https://www.fovir.fyi/knowledge-base/computer-composition/stack-organization/ Note of stack organization.https://www.fovir.fyi/knowledge-base/computer-composition/general-register-organization/Sat, 03 Jan 2026 00:00:00 +0800https://www.fovir.fyi/knowledge-base/computer-composition/general-register-organization/ Note of general register organization.https://www.fovir.fyi/blog/setup-javafx-on-nixos/Thu, 11 Dec 2025 00:00:00 +0800https://www.fovir.fyi/blog/setup-javafx-on-nixos/ Introduce how to setup Javafx on NixOS in dev shell, jdtls, and nixvim.https://www.fovir.fyi/knowledge-base/database/relational-algebra/Tue, 02 Dec 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/database/relational-algebra/ Note of relational algebra.https://www.fovir.fyi/knowledge-base/database/normalization/Tue, 25 Nov 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/database/normalization/ Introduction of normalization in database.https://www.fovir.fyi/knowledge-base/database/constraint-and-validation/Tue, 25 Nov 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/database/constraint-and-validation/ Introduction of database constraint and validation.https://www.fovir.fyi/blog/fix-neo-tree-jumping-cursor-completely/Fri, 21 Nov 2025 00:00:00 +0800https://www.fovir.fyi/blog/fix-neo-tree-jumping-cursor-completely/ A complete way to fix the jumping cursor problem in Neo-tree.https://www.fovir.fyi/knowledge-base/computer-composition/basic-computer-organization/Wed, 19 Nov 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/computer-composition/basic-computer-organization/ Introduction of basic computer organization.https://www.fovir.fyi/knowledge-base/database/relation-schema/Tue, 11 Nov 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/database/relation-schema/https://www.fovir.fyi/knowledge-base/database/eerd/Mon, 10 Nov 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/database/eerd/ Introduction of Enhanced ERD (EERD).https://www.fovir.fyi/blog/fix-neo-tree-jumping-cursor/Thu, 06 Nov 2025 00:00:00 +0800https://www.fovir.fyi/blog/fix-neo-tree-jumping-cursor/ This post documents a solution of fixing jumping cursor in the Neo-tree plugin.https://www.fovir.fyi/knowledge-base/database/queries/Fri, 31 Oct 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/database/queries/ Queries in MySQL.https://www.fovir.fyi/knowledge-base/database/database-design-process/Tue, 28 Oct 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/database/database-design-process/ Introduction of process of designing a database.https://www.fovir.fyi/knowledge-base/algorithm/analyze-recurrences/Mon, 27 Oct 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/algorithm/analyze-recurrences/ Introduction of recurrence analyze methods.https://www.fovir.fyi/knowledge-base/computer-composition/digital-components/Sun, 26 Oct 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/computer-composition/digital-components/ Introduction of digital components.https://www.fovir.fyi/knowledge-base/database/data-modelling/Tue, 21 Oct 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/database/data-modelling/ Introduction of data modelling.https://www.fovir.fyi/knowledge-base/database/table-operation/Mon, 20 Oct 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/database/table-operation/ Introduce the table operation in MySQL.https://www.fovir.fyi/knowledge-base/cybersecurity/sqli/blind-injection/time-delay/Mon, 20 Oct 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/cybersecurity/sqli/blind-injection/time-delay/ Introduce the SQL injection by triggering time delays.https://www.fovir.fyi/knowledge-base/database/database-opeartion/Mon, 20 Oct 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/database/database-opeartion/ Use SQL statements to operate database.https://www.fovir.fyi/knowledge-base/cybersecurity/sqli/blind-injection/error-based-sql-injection/Mon, 20 Oct 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/cybersecurity/sqli/blind-injection/error-based-sql-injection/ Introduce the error-based SQL injection.https://www.fovir.fyi/knowledge-base/computer-composition/memory-unit-and-address/Sat, 18 Oct 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/computer-composition/memory-unit-and-address/ Note of memory unit and address.https://www.fovir.fyi/knowledge-base/computer-composition/registers/Fri, 17 Oct 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/computer-composition/registers/ Introduction of registers.https://www.fovir.fyi/knowledge-base/algorithm/amortized-analysis/Fri, 17 Oct 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/algorithm/amortized-analysis/ Amortized analysis of algorithms.https://www.fovir.fyi/knowledge-base/algorithm/analyze-algorithms/Thu, 16 Oct 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/algorithm/analyze-algorithms/ Introduce how to analyze algorithms.https://www.fovir.fyi/knowledge-base/cybersecurity/sqli/blind-injection/conditional-responses/Mon, 13 Oct 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/cybersecurity/sqli/blind-injection/conditional-responses/ Notes of blind SQL injection with conditional responses.https://www.fovir.fyi/knowledge-base/cybersecurity/sqli/sql-injection-cheat-sheet/Sun, 12 Oct 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/cybersecurity/sqli/sql-injection-cheat-sheet/ SQL injection cheat sheet from https://portswigger.net/web-security/sql-injection/cheat-sheethttps://www.fovir.fyi/knowledge-base/cybersecurity/sqli/union-attack/Sun, 12 Oct 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/cybersecurity/sqli/union-attack/ Introduction of UNION attack in SQL injection.https://www.fovir.fyi/knowledge-base/cybersecurity/sqli/bypass-login/Sun, 12 Oct 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/cybersecurity/sqli/bypass-login/ Introduce how to bypass login via SQL injection.https://www.fovir.fyi/knowledge-base/database/database-concepts/Wed, 08 Oct 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/database/database-concepts/ Introduction of database concepts.https://www.fovir.fyi/knowledge-base/database/introduction-of-database/Tue, 07 Oct 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/database/introduction-of-database/ Introduction of database.https://www.fovir.fyi/knowledge-base/computer-composition/integer-formats/Mon, 06 Oct 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/computer-composition/integer-formats/ Formats of integers in microcomputers.https://www.fovir.fyi/knowledge-base/computer-composition/number-system/Mon, 06 Oct 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/computer-composition/number-system/ Introduction of the number system.https://www.fovir.fyi/knowledge-base/coding/golang/indirection/Wed, 30 Jul 2025 00:00:00 +0800https://www.fovir.fyi/knowledge-base/coding/golang/indirection/ Document the concept of pointer indirection in Go programming language.