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Digital Signature
What is a Digital Signature?
A digital signature is a mathematical scheme for verifying the authenticity of digital messages or documents. It provides a way to ensure that a message or document is created by a known sender, and that the message hasn't been altered in transit.
Key Aspects
Authentication: Verifies the identity of the sender.
Integrity: Ensures the message hasn't been tampered with.
Non-repudiation: Sender can't deny having sent the message.
Cryptographic Basis: Uses public key cryptography.
Legal Recognition: Often recognized as legally binding in many jurisdictions.
How Digital Signatures Work
Key Generation: The signer creates a pair of cryptographic keys (public and private).
Signing Process: The signer uses their private key to create the signature.
Verification: Recipients use the signer's public key to verify the signature.
Hash Function: Often involves creating a hash of the message for efficiency.
Time Stamping: Can include a timestamp for additional verification.
Digital Signatures vs. Other Authentication Methods
Physical Signatures: Digital signatures are more secure and harder to forge.
Passwords: Provide access control but not message integrity or non-repudiation.
Two-Factor Authentication: Focuses on access rather than document integrity.
Biometrics: Used for personal authentication, not document verification.
Encryption: Provides confidentiality but not necessarily authenticity.
Similar Terms
Public Key: Used in the verification process of digital signatures.
Private Key: Used to create digital signatures.
Cryptography: The broader field that includes digital signatures.
ChainFi, Inc (dba "Arch Lending" and referred to as "Arch" on this website) is not a bank.
Loan Services. Crypto backed loans (“Loans”) are offered to U.S. borrowers by ChainFi, Inc. NMLS #2637200. NMLS Consumer Access.
Loan Availability. Loan availability may vary based on jurisdiction. Loans are not available to U.S. residents of AL, CA, DE, HI, ID, IL, MN, MS, MT, NV, ND, RI, SC, SD, TX, VT, VA, or WA or to U.S. businesses in CA, DC, HI, MT, NV, NM, ND, RI, SD, or VT. We encourage you to contact us to determine if our loans are available in your state.
Loan Agreement. Loans are issued pursuant to a loan agreement between Arch and you. This legally binding document outlines your rights, obligations, interest rates, repayment schedules, potential fees, default consequences, and any other terms and conditions related to your loan. Your loan agreement may contain state-specific provisions. By signing the loan agreement, you acknowledge your acceptance of these terms, so please ensure you understand every aspect before proceeding.
Interest Rates. Annual interest rates are subject to change and may vary based on loan type, the principal amount requested, and the borrower's jurisdiction of residence.
Supported Assets. For the latest list of supported assets, refer to our Help Center.
No Financial, Investment or Tax Advice Provided. The information on this website, articles, guides, tools, or communications, is for general informational purposes only. It is not, and should not be construed as, financial, investment, tax, or other professional advice. Arch is not a financial advisor, investment advisor, broker, tax advisor, or accounting firm. We do not provide personalized advice or recommendations for your unique financial situation or goals. You should consult a qualified professional before making any financial, investment or tax decisions. Any examples, hypothetical scenarios, calculator results, or general discussions of financial or tax concepts are for illustration only and don't guarantee specific outcomes or apply to your personal circumstances. By using this website, you acknowledge you are solely responsible for your financial decisions and will seek independent professional advice as needed.
No Guarantee of Offers, Loans, or Returns. Your use or access to this website or platform does not guarantee the availability of any current and/or future offer, promotion, terms, loan, or return. All offers, promotions, terms, and loans are subject to availability and the sole discretion of Arch. We reserve the right to modify or withdraw any offering at any time without prior notice.
State-Specific Disclosures. Additional state-specific disclaimers may apply depending on your location. We encourage you to review all relevant disclaimers and terms carefully before proceeding.
State of Idaho Disclaimer. In Idaho, ChainFi, Inc is doing business as Arch Lending and does not conduct activity under the name Arch.
ChainFi, Inc (dba "Arch Lending"), 595 Broadway, Floor 4, New York, NY 10012
For general questions, visit our Help Center or use the Intercom chat widget in the bottom right corner of any screen on this website.
For customer service or complaints, email us at support@archlending.com, or call us toll-free: +1 855-272-4670 between Monday-Friday from 9am-7pm ET and Saturday-Sunday from 10am-5pm ET.
© 2025 All Rights Reserved
ChainFi, Inc (dba "Arch Lending" and referred to as "Arch" on this website) is not a bank.
Loan Services. Crypto backed loans (“Loans”) are offered to U.S. borrowers by ChainFi, Inc. NMLS #2637200. NMLS Consumer Access.
Loan Availability. Loan availability may vary based on jurisdiction. Loans are not available to U.S. residents of AL, CA, DE, HI, ID, IL, MN, MS, MT, NV, ND, RI, SC, SD, TX, VT, VA, or WA or to U.S. businesses in CA, DC, HI, MT, NV, NM, ND, RI, SD, or VT. We encourage you to contact us to determine if our loans are available in your state.
Loan Agreement. Loans are issued pursuant to a loan agreement between Arch and you. This legally binding document outlines your rights, obligations, interest rates, repayment schedules, potential fees, default consequences, and any other terms and conditions related to your loan. Your loan agreement may contain state-specific provisions. By signing the loan agreement, you acknowledge your acceptance of these terms, so please ensure you understand every aspect before proceeding.
Interest Rates. Annual interest rates are subject to change and may vary based on loan type, the principal amount requested, and the borrower's jurisdiction of residence.
Supported Assets. For the latest list of supported assets, refer to our Help Center.
No Financial, Investment or Tax Advice Provided. The information on this website, articles, guides, tools, or communications, is for general informational purposes only. It is not, and should not be construed as, financial, investment, tax, or other professional advice. Arch is not a financial advisor, investment advisor, broker, tax advisor, or accounting firm. We do not provide personalized advice or recommendations for your unique financial situation or goals. You should consult a qualified professional before making any financial, investment or tax decisions. Any examples, hypothetical scenarios, calculator results, or general discussions of financial or tax concepts are for illustration only and don't guarantee specific outcomes or apply to your personal circumstances. By using this website, you acknowledge you are solely responsible for your financial decisions and will seek independent professional advice as needed.
No Guarantee of Offers, Loans, or Returns. Your use or access to this website or platform does not guarantee the availability of any current and/or future offer, promotion, terms, loan, or return. All offers, promotions, terms, and loans are subject to availability and the sole discretion of Arch. We reserve the right to modify or withdraw any offering at any time without prior notice.
State-Specific Disclosures. Additional state-specific disclaimers may apply depending on your location. We encourage you to review all relevant disclaimers and terms carefully before proceeding.
State of Idaho Disclaimer. In Idaho, ChainFi, Inc is doing business as Arch Lending and does not conduct activity under the name Arch.
ChainFi, Inc (dba "Arch Lending"), 595 Broadway, Floor 4, New York, NY 10012
For general questions, visit our Help Center or use the Intercom chat widget in the bottom right corner of any screen on this website.
For customer service or complaints, email us at support@archlending.com, or call us toll-free: +1 855-272-4670 between Monday-Friday from 9am-7pm ET and Saturday-Sunday from 10am-5pm ET.
© 2025 All Rights Reserved
ChainFi, Inc (dba "Arch Lending" and referred to as "Arch" on this website) is not a bank.
Loan Services. Crypto backed loans (“Loans”) are offered to U.S. borrowers by ChainFi, Inc. NMLS #2637200. NMLS Consumer Access.
Loan Availability. Loan availability may vary based on jurisdiction. Loans are not available to U.S. residents of AL, CA, DE, HI, ID, IL, MN, MS, MT, NV, ND, RI, SC, SD, TX, VT, VA, or WA or to U.S. businesses in CA, DC, HI, MT, NV, NM, ND, RI, SD, or VT. We encourage you to contact us to determine if our loans are available in your state.
Loan Agreement. Loans are issued pursuant to a loan agreement between Arch and you. This legally binding document outlines your rights, obligations, interest rates, repayment schedules, potential fees, default consequences, and any other terms and conditions related to your loan. Your loan agreement may contain state-specific provisions. By signing the loan agreement, you acknowledge your acceptance of these terms, so please ensure you understand every aspect before proceeding.
Interest Rates. Annual interest rates are subject to change and may vary based on loan type, the principal amount requested, and the borrower's jurisdiction of residence.
Supported Assets. For the latest list of supported assets, refer to our Help Center.
No Financial, Investment or Tax Advice Provided. The information on this website, articles, guides, tools, or communications, is for general informational purposes only. It is not, and should not be construed as, financial, investment, tax, or other professional advice. Arch is not a financial advisor, investment advisor, broker, tax advisor, or accounting firm. We do not provide personalized advice or recommendations for your unique financial situation or goals. You should consult a qualified professional before making any financial, investment or tax decisions. Any examples, hypothetical scenarios, calculator results, or general discussions of financial or tax concepts are for illustration only and don't guarantee specific outcomes or apply to your personal circumstances. By using this website, you acknowledge you are solely responsible for your financial decisions and will seek independent professional advice as needed.
No Guarantee of Offers, Loans, or Returns. Your use or access to this website or platform does not guarantee the availability of any current and/or future offer, promotion, terms, loan, or return. All offers, promotions, terms, and loans are subject to availability and the sole discretion of Arch. We reserve the right to modify or withdraw any offering at any time without prior notice.
State-Specific Disclosures. Additional state-specific disclaimers may apply depending on your location. We encourage you to review all relevant disclaimers and terms carefully before proceeding.
State of Idaho Disclaimer. In Idaho, ChainFi, Inc is doing business as Arch Lending and does not conduct activity under the name Arch.
ChainFi, Inc (dba "Arch Lending"), 595 Broadway, Floor 4, New York, NY 10012
For general questions, visit our Help Center or use the Intercom chat widget in the bottom right corner of any screen on this website.
For customer service or complaints, email us at support@archlending.com, or call us toll-free: +1 855-272-4670 between Monday-Friday from 9am-7pm ET and Saturday-Sunday from 10am-5pm ET.
© 2025 All Rights Reserved