Judul: Analysis of the Influence of Company Performance and Environmental Performance on Disclosure of Carbon Emissions in Energy Sector Companies
Abstrak: Perkembangan teknologi telah memberikan dampak negatif salah satunya naiknya suhu permukaan bumi yang disebabkan oleh emisi gas rumah kaca. Hingga tahun 2022, Penyumbang terbesar emisi karbon di Indonesia adalah aktivitas industri sektor energi. Sampel pada penelitian ini dipilih menggunakan metode purposive sampling sebanyak 20 perusahaan sektor energi yang memenuhi kriteria yang dipilih oleh peneliti. Metode yang digunakan pada penelitian ini yaitu Analisis Regresif Data Panel. Variabel Dependen dalam penelitian ini yaitu Pengungkapan Emisi Karbon. Variabel Independen dalam penelitian ini yaitu profitabilitas, leverage, kinerja lingkungan, ukuran perusahaan, dan kinerja karbon. Hasil penelitian menunjukkan bahwa variabel independen profitabilitas dan kinerja lingkungan berpengaruh positif terhadap pengungkapan emisi karbon yang artinya variabel tersebut berpengaruh positif terhadap luas pengungkapan emisi karbon. Sedangkan variabel kinerja keuangan, leverage, ukuran perusahaan, dan kinerja karbon berpengaruh negatif terhadap pengungkapan emisi karbon.
Keyword: carbon emissions disclosure, profitability, financial performance, company size, environmental performance

Judul: The Influence of Financial and Environmental Performance on Firm Value with  Carbon Emission Disclosure as a Moderating Variable at Energy Companies
Abstrak: Transisi pembangunan Indonesia tidak terlepas dari eksploitasi sumber daya alam dan lingkungan. Eksploitasi sumber daya alam dan lingkungan berdampak pada terjadinya perubahan iklim akibat efek gas rumah kaca. Sektor energi yang merupakan salah satu sumber pertumbuhan ekonomi Indonesia memiliki kontribusi terbesar dalam produksi karbon. Penelitian ini bertujuan untuk menganalisis carbon emission disclosure sebagai variabel moderasi dari pengaruh kinerja keuangan dan kinerja lingkungan terhadap nilai perusahaan pada perusahaan sektor energi. Sampel penelitian ini menggunakan 25 perusahaan sektor energi yang tercatat. Metode penelitian yang digunakan ialah analisis moderasi regresi (MRA) pada data panel dari tahun 2019-2023 yang diolah dengan software Eviews 12. Hasil penelitian menunjukkan bahwa variabel independen, yaitu kinerja keuangan yang diproksikan dengan return on equity (ROE) & kinerja lingkungan secara simultan dan parsial berpengaruh signifikan terhadap nilai perusahaan. Carbon emission disclosure sebagai variabel moderasi dapat mengubah arah secara signifikan pengaruh antara kinerja keuangan dan nilai perusahaan. Akan tetapi, hanya bersifat potensial dan tidak dapat mempengaruhi secara signifikan antara hubungan kinerja lingkungan dengan nilai perusahaan., The development transition in Indonesia is closely related to the exploitation of natural resources and environment. Natural resources and environmental exploitation result in climate change due to the greenhouse gas effect. As one of Indonesia's main economic growth sources, the energy sector has the most significant contribution to carbon production. This study aims to analyze carbon emission disclosure as a moderating variable of the effect of financial and environmental performances on the firm's value in energy sector companies. The study's data using 25 listed energy sector companies as the study's sample. The method used was moderated regression analysis (MRA) on panel data from 2019-2023, which was processed using the Eviews 12 software. The results show that the independent variable, including financial performance proxied by return on equity (ROE) and environmental performance, both simultaneously and partially significantly impact the firm's value. Carbon emission disclosure as a moderating variable can significantly attenuate the influence between financial performance and a firm's value. However, it only has potential and cannot significantly influence the relationship between environmental performance and firm value
Keyword: nilai perusahaan

Judul: Algorithm construction of HLI hash function
Abstrak: Cryptography is a study of mathematical techniques related to aspects of information security regarding on confidentiality, data integrity, entity authentication, and data origin authentication. Data integrity is a service, which is associated with the conversion of data carried out by unauthorized parties. To maintain data integrity, one can use hash functions. An hash function is a computationally efficient function to map an arbitrary length bitstring to a fixed length bitstring called as hash value. The use of hash function in maintaining the information integrity and authentication is in digital signatures, virus protection, and software distribution. Illustration of the hash function in the integrity and authentication of information that is emailed as follow. The sender sends the information and hash value to the recipient. If the hash value of the information is equal to the hash value that is sent by the sender, then information has not been changed. Otherwise the information has been changed. An hash function has two properties, one way and collision resistance. An hash function is called one way if it is computationally infeasible to find any input such that when given any hash value . Meanwhile an hash function is called collision resistant if it is computationally infeasible to find any two inputs where such that . The purpose of this study is to construct a HLI hash function algorithm, to analyze the speed and security of the hash functions as a results of construction. Furthermore, it is to compare it with SWIFFT. Hash function is constructed based on the result of algebraic operations on modular polynomial ringwith . Modular polynomial ring noted as is a set of all polynomials of degree at most with coefficients in . can be represented as a set of integer vector of modulo in dimension . So, it is simple to implement in a computer. In vector operations, is lattice . Furthermore, alattice that is defined from certain polynomial ring is called ideal lattice. HLI hash function is consists of addition and multiplication algorithm in the ring. Addition algorithm consists of sumation operations of modulo and multiplication consists of multiplication operations of modulo . Generally, algorithm of HLI hash function consists of multiplication operations of modulo and addition operations of modulo . However, if the input is binary number then multiplication algorithm only consists of multiplication operation of modulo , so algorithm of HLI hash function consists of multiplication operations of modulo and addtion operations of modulo . An hash function is secured if it has two properties, i.e., one way and collision resistance. HLI hash function hash is one way, it is following the proof of Micciancio. It is has collision resistant because of polynomial is irreducible over and monic. Moreover, it is proved that for every unit vector , the vector is small vector. If the input of hash function is a binary number then HLI hash function only involves addition operations of modulo . So the time that used almost same with SWIFFT. The excellence of HLI hash function is the key size smaller than SWIFFT. This effect on
Keyword: hash function, modular polynomial ring, lattice