tranchsanto

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Joined: 23 Feb 21

Rank: #119

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Level: 27
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575 points to next level

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Solved Challenges

1 Sep 24 Elliptic Curves A Twisted Mind 80
23 Aug 24 Elliptic Curves Digestive 60
22 Aug 24 Isogenies A True Genus 175
17 Aug 24 Isogenies Meet me in the Claw 120
12 Aug 24 Isogenies Dual Masters 90
10 Aug 24 Isogenies Abelian SIDH 90
9 Aug 24 Isogenies Better than Linear 85
9 Aug 24 Isogenies André Encoding 80
7 Aug 24 CTF Archive Hide and seek (ECSC 2023 (Norway)) 0
7 Aug 24 Isogenies What's My Kernel 70
6 Aug 24 Isogenies CSIDH Key Exchange 90
5 Aug 24 CTF Archive Blind (ECSC 2023 (Norway)) 0
5 Aug 24 Isogenies Twisted CSIDH Isogenies 70
4 Aug 24 Isogenies Secret Exponents 60
3 Aug 24 CTF Archive RRSSAA (ECSC 2023 (Norway)) 0
3 Aug 24 Isogenies Prime Power Isogenies 50
2 Aug 24 Isogenies Special Isogenies 30
1 Aug 24 Isogenies Breaking SIDH 250
29 Jul 24 Isogenies SIDH Key Exchange 80
28 Jul 24 Isogenies Composite Isogenies 60
26 Jul 24 Isogenies Three Isogenies 35
25 Jul 24 Isogenies Two Isogenies 30
24 Jul 24 Hash Functions WOTS Up 2 90
24 Jul 24 Hash Functions WOTS Up 75
22 Jul 24 Hash Functions Merkle Trees 25
19 Jul 24 CTF Archive OR Proof (CryptoHack) 0
19 Jul 24 ZKPs OR Proof 75
18 Jul 24 ZKPs Too Honest 50
18 Jul 24 ZKPs Non-Interactive 35
17 Jul 24 ZKPs Honest Verifier Zero Knowledge 30
17 Jul 24 ZKPs Special Soundness 25
17 Jul 24 ZKPs Proofs of Knowledge 20
16 Jul 24 ZKPs ZKP Introduction 5
16 Jul 24 Isogenies DLOG on the Surface 40
15 Jul 24 Isogenies Montgomery Curves 30
13 Jul 24 Isogenies Image Point Arithmetic 30
13 Jul 24 Isogenies Where's the Supersingular Curve 25
12 Jul 24 Isogenies The j-invariant 20
12 Jul 24 Isogenies Introduction to Isogenies 10
18 May 23 Lattices Missing Modulus 80
23 Feb 23 Misc RSA vs RNG 150
17 Feb 23 Lattices Nativity 60
31 Jan 23 Mathematics No Way Back Home 100
29 Jan 23 Crypto on the Web Authenticated Handshake 40
27 Jan 23 Crypto on the Web Decrypting TLS 1.3 35
27 Jan 23 Crypto on the Web Decrypting TLS 1.2 30
20 Jan 23 Crypto on the Web Saying Hello 20
17 Jan 23 Crypto on the Web TLS Handshake 15
17 Jan 23 Crypto on the Web Sharks on the Wire 10
17 Jan 23 Crypto on the Web Secure Protocols 5
17 Jan 23 Lattices Noise Free 40
16 Jan 23 Lattices From Private to Public Key LWE 25
16 Jan 23 Lattices LWE Low Bits Message 20
15 Jan 23 Lattices LWE High Bits Message 15
15 Jan 23 Lattices LWE Intro 10
15 Jan 23 Lattices LWE Background 5
23 Aug 21 Misc Bruce Schneier's Password 100
21 Aug 21 Lattices Too Many Errors 100
20 Aug 21 Misc Toshi's Treasure 150
19 Aug 21 Misc Armory 100
19 Aug 21 Misc Bit by Bit 100
18 Aug 21 Misc Jeff's LFSR 150
15 Aug 21 Misc L-Win 120
15 Aug 21 Hash Functions No Difference 175
14 Aug 21 Hash Functions Mixed Up 120
13 Aug 21 Hash Functions Twin Keys 100
11 Aug 21 Hash Functions PriMeD5 100
8 Aug 21 Hash Functions MD0 80
7 Aug 21 Hash Functions Hash Stuffing 50
7 Aug 21 Hash Functions Collider 50
6 Aug 21 Misc Trust Games 150
5 Aug 21 Misc Nothing Up My Sleeve 150
4 Aug 21 Misc Lo-Hi Card Game 120
3 Aug 21 Misc No Leaks 100
2 Aug 21 Crypto on the Web RSA or HMAC? Part 2 100
1 Aug 21 Crypto on the Web JSON in JSON 40
31 Jul 21 Diffie-Hellman The Matrix Revolutions 125
28 Jul 21 Diffie-Hellman The Matrix Reloaded 100
27 Jul 21 Diffie-Hellman The Matrix 75
26 Jul 21 Symmetric Ciphers Dancing Queen 120
26 Jul 21 Mathematics Roll your Own 125
20 Jul 21 Misc Gotta Go Fast 40
19 Jul 21 Crypto on the Web RSA or HMAC? 35
19 Jul 21 Crypto on the Web JWT Secrets 25
19 Jul 21 Crypto on the Web No Way JOSE 20
19 Jul 21 Crypto on the Web JWT Sessions 10
19 Jul 21 Crypto on the Web Token Appreciation 5
8 Jul 21 General SSH Keys 35
8 Jul 21 Elliptic Curves Double and Broken 50
7 Jul 21 Elliptic Curves Montgomery's Ladder 40
7 Jul 21 Elliptic Curves Edwards Goes Degenerate 100
6 Jul 21 Elliptic Curves No Random, No Bias 120
2 Jul 21 Elliptic Curves ProSign 3 100
1 Jul 21 Elliptic Curves Curveball 100
1 Jul 21 Elliptic Curves Moving Problems 150
1 Jul 21 Elliptic Curves Elliptic Nodes 150
1 Jul 21 Elliptic Curves Micro Transmissions 120
24 Jun 21 Elliptic Curves Exceptional Curves 100
23 Jun 21 Elliptic Curves Smooth Criminal 60
23 Jun 21 Elliptic Curves Efficient Exchange 50
23 Jun 21 Elliptic Curves Curves and Logs 40
23 Jun 21 Elliptic Curves Scalar Multiplication 35
23 Jun 21 Elliptic Curves Point Addition 30
23 Jun 21 Elliptic Curves Point Negation 10
23 Jun 21 Elliptic Curves Background Reading 5
23 Jun 21 Diffie-Hellman Script Kiddie 70
19 Jun 21 Diffie-Hellman Static Client 2 120
15 Jun 21 Diffie-Hellman Additive 70
15 Jun 21 Diffie-Hellman Static Client 100
11 Jun 21 Diffie-Hellman Export-grade 100
10 Jun 21 Diffie-Hellman Parameter Injection 60
10 Jun 21 Diffie-Hellman Deriving Symmetric Keys 40
10 Jun 21 Diffie-Hellman Computing Shared Secrets 30
10 Jun 21 Diffie-Hellman Computing Public Values 25
10 Jun 21 Diffie-Hellman Generators of Groups 20
10 Jun 21 Diffie-Hellman Working with Fields 10
10 Jun 21 RSA Let's Decrypt Again 175
6 Jun 21 RSA Vote for Pedro 150
5 Jun 21 RSA Blinding Light 120
4 Jun 21 RSA Let's Decrypt 80
2 Jun 21 RSA Signing Server 60
1 Jun 21 RSA Null or Never 100
1 Jun 21 RSA Bespoke Padding 100
29 May 21 RSA RSA Backdoor Viability 175
28 May 21 RSA Ron was Wrong, Whit is Right 90
28 May 21 RSA Fast Primes 75
25 May 21 RSA Marin's Secrets 50
24 May 21 RSA Infinite Descent 50
23 May 21 RSA Endless Emails 150
21 May 21 RSA Everything is Still Big 100
20 May 21 RSA Crossed Wires 100
19 May 21 RSA Everything is Big 70
19 May 21 RSA Modulus Inutilis 50
18 May 21 RSA Salty 20
17 May 21 RSA Manyprime 40
17 May 21 RSA Square Eyes 35
17 May 21 RSA Monoprime 30
17 May 21 RSA Inferius Prime 30
17 May 21 RSA Factoring 15
17 May 21 RSA RSA Signatures 25
17 May 21 RSA RSA Decryption 20
17 May 21 RSA Private Keys 20
17 May 21 RSA Euler's Totient 20
17 May 21 RSA Public Keys 15
17 May 21 RSA Modular Exponentiation 10
16 May 21 Symmetric Ciphers Oh SNAP 120
14 May 21 Symmetric Ciphers Triple DES 60
13 May 21 Symmetric Ciphers Paper Plane 120
11 May 21 Symmetric Ciphers Logon Zero 80
9 May 21 Symmetric Ciphers Forbidden Fruit 150
5 May 21 Symmetric Ciphers Stream of Consciousness 80
4 May 21 Symmetric Ciphers CTRIME 70
3 May 21 Symmetric Ciphers Bean Counter 60
2 May 21 Symmetric Ciphers Symmetry 50
1 May 21 Symmetric Ciphers Lazy CBC 60
30 Apr 21 Symmetric Ciphers Flipping Cookie 60
29 Apr 21 Symmetric Ciphers ECB CBC WTF 55
29 Apr 21 Symmetric Ciphers ECB Oracle 60
27 Apr 21 Symmetric Ciphers Passwords as Keys 50
26 Apr 21 Symmetric Ciphers Modes of Operation Starter 15
25 Apr 21 Symmetric Ciphers Bringing It All Together 50
25 Apr 21 Symmetric Ciphers Diffusion through Permutation 30
25 Apr 21 Symmetric Ciphers Confusion through Substitution 25
25 Apr 21 Symmetric Ciphers Round Keys 20
25 Apr 21 Symmetric Ciphers Structure of AES 15
25 Apr 21 Symmetric Ciphers Resisting Bruteforce 10
24 Apr 21 Symmetric Ciphers Keyed Permutations 5
24 Apr 21 Mathematics Prime and Prejudice 200
21 Apr 21 Mathematics Real Eisenstein 150
19 Apr 21 Mathematics Cofactor Cofantasy 150
11 Apr 21 Mathematics Unencryptable 125
11 Apr 21 Mathematics Ellipse Curve Cryptography 125
3 Apr 21 Mathematics Broken RSA 100
1 Apr 21 Mathematics Modular Binomials 80
30 Mar 21 Mathematics Adrien's Signs 80
29 Mar 21 Mathematics Successive Powers 60
28 Mar 21 Hash Functions Jack's Birthday Confusion 30
26 Mar 21 Hash Functions Jack's Birthday Hash 20
25 Mar 21 Lattices Backpack Cryptography 120
24 Mar 21 Lattices Find the Lattice 100
23 Mar 21 Lattices Gaussian Reduction 50
22 Mar 21 Lattices What's a Lattice? 40
21 Mar 21 Lattices Gram Schmidt 30
20 Mar 21 Lattices Size and Basis 15
19 Mar 21 Lattices Vectors 10
18 Mar 21 Mathematics Chinese Remainder Theorem 40
17 Mar 21 Mathematics Modular Square Root 35
15 Mar 21 Mathematics Legendre Symbol 35
14 Mar 21 Mathematics Quadratic Residues 25
14 Mar 21 General Transparency 50
12 Mar 21 General CERTainly not 30
11 Mar 21 General Privacy-Enhanced Mail? 25
10 Mar 21 General Modular Inverting 25
9 Mar 21 General Modular Arithmetic 2 20
8 Mar 21 General Modular Arithmetic 1 20
7 Mar 21 General Extended GCD 20
6 Mar 21 General Greatest Common Divisor 15
5 Mar 21 General Lemur XOR 40
4 Mar 21 General You either know, XOR you don't 30
3 Mar 21 General Favourite byte 20
2 Mar 21 General XOR Properties 15
1 Mar 21 General XOR Starter 10
28 Feb 21 General Encoding Challenge 40
27 Feb 21 General Bytes and Big Integers 10
26 Feb 21 General Base64 10
25 Feb 21 General Hex 5
24 Feb 21 General ASCII 5
23 Feb 21 Introduction Network Attacks 5
23 Feb 21 Introduction Great Snakes 3
23 Feb 21 Introduction Finding Flags 2

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