ICANN Verification Email | Web Talk Hosting

Hi everyone – I am using WHMCS and I have chosen namecheap to register domains. The only thing that causes a problem is when someone registers a domain name sends the ICANN verification email with a filename address with its mark on it. They do not appear to offer a white label ICANN verification email.

How do you deal with all of this? The customer is afraid to receive an email from someone with whom he does not do business directly and thinks it is shady. It becomes a bit of a problem.
Thanks for the insight in advance.

argon2 – Password verification resistant to GPU attacks and leaked password files without introducing a DoS attack on the server?

Using hard memory algorithms, the benefit of ASICs is limited: RAM costs about the same price in an ASIC as it does in mainstream hardware.

Thus, one solution would be to pass the password via a hard memory function, hash the result twice and store the result in the password file.

For example. store it in the password file: sel, sha512 (sha512 (Argon2id (1 GB RAM, 1 G instructions, salt, password))).

As long as SHA512 and Argon2id are not broken, this should significantly reduce the use of ASICs.

Unfortunately, if the calculation is executed on the server, the server can be DoS by starting several connections simultaneously, because if the server has to run Argon2id (1 GB of RAM), it will use 1 GB of RAM for each simultaneous connection. This can be avoided by moving this calculation to the client:

Client: Please login in user A
Server: Here is the salt for user A
Client: computes sha512(Argon2id(1 GB RAM, 1 G instructions, salt, password))
Client: Return result to Server
Server: Compare sha512(result) with password file.

Even for modern smartphones, the use of 1 GB of RAM for 1 G instructions is possible, and for laptops this has not been a problem for a long time.

In practice, the client program would need native support for this, but for browsers, this should be possible using plug-ins / extensions / add-ons / modules.

When performing a single hash on the server, a leaked password file cannot be used directly, as calculating the reverse of a hash should be very difficult.

For customers who don't support this (for example, if they have less than 1 GB of free RAM), we can give the user the option to do a CAPTCHA, and if it does so, the server will perform the calculation for the client.

openssl – Differences in certificate verification between SSL libraries

I have been playing with x509 certificates to understand them better and I have encountered a strange problem which makes me think that I have a misunderstanding. Initially, I tested everything with libressl 2.8.3 and things work as expected, however when testing against openssl 1.1.1d, things collapse.

I first created a root key and a certificate with

libressl ecparam -out root.pem -name secp384r1 -genkey
libressl req -new -key root.pem -out root.csr
libressl x509 -in root.csr -out root.crt -req -signkey root.pem -days 30

then the middleman

libressl ecparam -out inter.pem -name secp384r1 -genkey
libressl req -new -key inter.pem -out inter.csr
libressl x509 -in inter.csr -out inter.crt -req -signkey root.pem -days 30

and a leaf

libressl ecparam -out leaf.pem -name secp384r1 -genkey
libressl req -new -key leaf.pem -out leaf.csr
libressl x509 -in leaf.csr -out leaf.crt -req -signkey inter.pem -days 30

The problem I am having is that libressl will verify the intermediate certificate while openssl will not

>>> libressl verify -CAfile root.crt inter.crt
inter.crt: C = US, ST = CA, L = SF, O = Inter
error 18 at 0 depth lookup:self signed certificate
>>> openssl verify -CAfile root.crt inter.crt
C = US, ST = CA, L = SF, O = Inter
error 18 at 0 depth lookup: self signed certificate
error inter.crt: verification failed

Am I missing something or is openssl exposing that I have a bad understanding of x509 and free / openssl certificates? Likewise, validation of the leaf certificate with a set of root and intermediary succeeds with libressl and fails with openssl.

google, facebook, Whatsapp sms and voice verification

To integrate



Image of the link:

installation – does adb install do an apk signature verification?

When in use adb install something.apk, does the Android package manager check the apk signature? adb install seems to show nothing on the phone screen, so it's hard for me to know if this is the case.

I like the idea of ​​using apk mirror websites to download apk files with a phone that doesn't have google play services, but since I can't trust any of these websites apk mirror, I want to make sure that the app data is not at risk when used adb install when upgrading to a new apk version.

Yes adb install does signature verification, what does it do if the signature does not match? Does the installation fail, a question appears on the phone screen or automatically erases existing data from the application?

How does the answer to my question change if you use -r option with adb install?

If I use adb uninstall -k before installing the application upgrade, does signature verification occur from the previous installation before old application data is shared with the new installation?

Bonus: we have the possibility adb install -l, or -l means "lock app forward". What does this "forward lock" mean and does it have anything to do with signature verification and access to application data?

Why don't my changes require verification for a Google Cloud project?

I'm trying to verify a Google Sheets app so that a client from another organization can use our previous internal tool. The app doesn’t use any sensitive Google APIs; it just makes a few requests to our company's internal API that does not require any of the user's private information. I jumped through all the circles regarding OAuth client verification, but when I submit for verification (and fill out the secondary form), it hangs for a while, then the submit button is greyed out and the pop-up window says "Your changes do not require verification."

It always gives the warning "This application is not verified" for my non-professional account and the client still cannot execute the script. This app is not verified

I am not receiving a confirmation email and the verification status is "Unpublished" instead of "Currently being verified", which the FAQ says it should say. I can only assume that it is not verified, but I still need to verify the project. I don't see what else to do except go back to the beginning and do the same project in an AWS Lambda or something.

encryption – ValueError: MAC verification failed

I am making a super small and simple program, where it seeks to understand this module a little more, but something very strange is happening.

The code below returns:

Traceback (most recent call last):
File ".crypto.py", line 100, in  init = Emisor()
File ".crypto.py", line 15, in __init__ self.encrypt()
File ".crypto.py", line 71, in encrypt Receptor(cipher_text,tag_mac,self.key)
File ".crypto.py", line 84, in __init__ self.decrypt(self.cipher_text,self.tag_mac,self.key)
File ".crypto.py", line 93, in decrypt plain_text = cipher.decrypt_and_verify(cipher_text,tag_mac)
File "C:UsersEQUIPOAppDataLocalProgramsPythonPython37-32libsite-packagesCryptoCipher_mode_gcm.py", line 569, in decrypt_and_verify self.verify(received_mac_tag)
File "C:UsersEQUIPOAppDataLocalProgramsPythonPython37-32libsite-packagesCryptoCipher_mode_gcm.py", line 510, in verify raise ValueError("MAC check failed")
ValueError: MAC check failed

I have already read many PDF files, documentation, videos, blogs, etc. But I can't find the solution.

PDTA: it's "nonce" and it's the "header", there is a method called update() and this is where i should put the header, i am a little lost with that and the nonce.

from Crypto.Cipher import AES
from Crypto.Random import get_random_bytes

class Transmitter():

    def __init__(self):

        self.random_password = None
        self.message_plain = True
        self.key = None


    def password_option(self):

        while ( self.random_password == None ):

            random = input("nDo you want to generate a random symmetric key? (y/n)nn>>> ").strip().lower()

            if random == "y":
                self.random_password = True

            elif random == "n":
                self.random_password = False


    def text_option(self):

        if self.message_plain:

            question = input("nHow will you enter your message?nn(1) filenn(2) directly in the programnn>>> ").strip()

            if question == "1":
                path = input(r"nEnter the file pathnn>>> ").strip()
                name = path.split("\")(-1)
                self.message_plain = open(name,mode = "rb")

            elif question == "2":
                self.message_plain = input("nEnter your messagenn>>> ").strip()
                self.message_plain = self.message_plain.encode("utf-8")

    def random(self):

        if self.random_password:
            self.key = get_random_bytes(16)

            self.key = input("nEnter your passwordnn>>> ").strip()

    def encrypt(self):

        cipher = AES.new(self.key,AES.MODE_GCM)


        cipher_text,tag_mac = cipher.encrypt_and_digest(self.message_plain)


class Receiver():

    def __init__(self,cipher_text,tag_mac,key):

        self.cipher_text = cipher_text
        self.tag_mac = tag_mac
        self.key = key


    def decrypt(self,cipher_text,tag_mac,key):


        # nonce = aes_cipher.nonce
        cipher = AES.new(key,AES.MODE_GCM)
        plain_text = cipher.decrypt_and_verify(cipher_text,tag_mac)

        #except ValueError:
        #   print("nAn error has occurred.")

if __name__ == '__main__':

    init = Transmitter()

laravel – Error: invalid accessory: type verification failed for accessory "data". Expected object, painting obtained

Hello, I am learning Vuejs and for this I make a request to the database where the menu items are extracted directly from the database and everything works perfectly, but the following error appears on the console, What I repeat does not affect the functioning but it is uncomfortable Go ahead, I hope you can help me find the solution:

(Vue warn): Invalid prop: type check failed for prop "data". Expected Object, got Array found in

--->  at resources/js/src/components/vx-auto-suggest/VxAutoSuggest.vue
        at resources/js/src/layouts/components/navbar/components/SearchBar.vue
          at vsNavbar.vue
            at resources/js/src/layouts/components/navbar/TheNavbarVertical.vue
at resources/js/src/layouts/main/Main.vue at resources/js/src/App.vue

The code of the controller responsible for the publication of the json is as follows:

            return $pages;
        return view('partials.failed');*/

and the component code with the error is as follows:

I hope you can help me find what is wrong, thanks!

Evidence Techniques – Review Of Formal Verification And How To Apply It To The Greenfield Project

Last year, I studied formal verification a lot, such as automated theorem verification, model verification, type systems, symbolic evaluation, and many others. I probably spent a few weeks or maybe months examining it. At the time, I felt like I had a good understanding of how it could be applied, but I still couldn't put my finger on the first few steps. Today, I forgot an important part of this kind of thing, or more precisely of Implementation details. I get all the different branches of formal verification at a high theoretical level, but I don't know how to apply it to writing real software.

The question here is how to apply formal verification to a project if it was entirely blank and without constraints (but at the same time, realistic, which means that problems can be resolved within a reasonable time). I wonder if we could explain briefly enough how you would apply Absolutely everything Formal verification techniques to obtain this mathematical guarantee that your program corresponds to a specification. How do the hardware people do it? How should it be done in software? Fundamentally…

Specifically, nothing comes to mind other than writing unit / integration tests when it comes to making sure I build a program correctly super complicated (like an HTTP server). How could I apply model checking, or typographic checking, or other things, to my advantage in terms of proofs / guarantees of program accuracy (with regard to specifications)?